Journal of Pathology and Translational Medicine

Letter To The Editor

Response to comment on “A stepwise approach to fine needle aspiration cytology of lymph nodes”: Yosep Chong, Gyeongsin Park, Hee Jeong Cha, Hyun-Jung Kim, Chang Suk Kang, Jamshid Abdul-Ghafar, Seung-Sook Lee; J Pathol Transl Med. 2024;58(1):43-44. Published online January 10, 2024; DOI: https://doi.org/10.4132/jptm.2023.12.04

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Review

A stepwise approach to fine needle aspiration cytology of lymph nodes: Yosep Chong, Gyeongsin Park, Hee Jeong Cha, Hyun-Jung Kim, Chang Suk Kang, Jamshid Abdul-Ghafar, Seung-Sook Lee; J Pathol Transl Med. 2023;57(4):196-207. Published online July 11, 2023; DOI: https://doi.org/10.4132/jptm.2023.06.12

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The cytological diagnosis of lymph node lesions is extremely challenging because of the diverse diseases that cause lymph node enlargement, including both benign and malignant or metastatic lymphoid lesions. Furthermore, the cytological findings of different lesions often resemble one another. A stepwise diagnostic approach is essential for a comprehensive diagnosis that combines: clinical findings, including age, sex, site, multiplicity, and ultrasonography findings; low-power reactive, metastatic, and lymphoma patterns; high-power population patterns, including two populations of continuous range, small monotonous pattern and large monotonous pattern; and disease-specific diagnostic clues including granulomas and lymphoglandular granules. It is also important to remember the histological features of each diagnostic category that are common in lymph node cytology and to compare them with cytological findings. It is also essential to identify a few categories of diagnostic pitfalls that often resemble lymphomas and easily lead to misdiagnosis, particularly in malignant small round cell tumors, poorly differentiated squamous cell carcinomas, and nasopharyngeal undifferentiated carcinoma. Herein, we review a stepwise approach for fine needle aspiration cytology of lymphoid diseases and suggest a diagnostic algorithm that uses this approach and the Sydney classification system.

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Brief Case Reports

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Original Articles

Cytological Evaluation and REBA HPV-ID HPV Testing of Newly Developed Liquid-Based Cytology, EASYPREP: Comparison with SurePath: Youn Soo Lee, Gyungyub Gong, Jin Hee Sohn, Ki Sung Ryu, Jung Hun Lee, Shin Kwang Khang, Kyung-Ja Cho, Yong-Man Kim, Chang Suk Kang; Korean J Pathol. 2013;47(3):265-274. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.265

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Abstract PDF

Background

The objective of this study was to evaluate a newly-developed EASYPREP liquid-based cytology method in cervicovaginal specimens and compare it with SurePath.

Methods

Cervicovaginal specimens were prospectively collected from 1,000 patients with EASYPREP and SurePath. The specimens were first collected by brushing for SurePath and second for EASYPREP. The specimens of both methods were diagnosed according to the Bethesda System. Additionally, we performed to REBA HPV-ID genotyping and sequencing analysis for human papillomavirus (HPV) on 249 specimens.

Results

EASYPREP and SurePath showed even distribution of cells and were equal in cellularity and staining quality. The diagnostic agreement between the two methods was 96.5%. Based on the standard of SurePath, the sensitivity, specificity, positive predictive value, and negative predictive value of EASYPREP were 90.7%, 99.2%, 94.8%, and 98.5%, respectively. The positivity of REBA HPV-ID was 49.4% and 95.1% in normal and abnormal cytological samples, respectively. The result of REBA HPV-ID had high concordance with sequencing analysis.

Conclusions

EASYPREP provided comparable results to SurePath in the diagnosis and staining quality of cytology examinations and in HPV testing with REBA HPV-ID. EASYPREP could be another LBC method choice for the cervicovaginal specimens. Additionally, REBA HPV-ID may be a useful method for HPV genotyping.

Citations

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Hedgehog Related Protein Expression in Breast Cancer: Gli-2 Is Associated with Poor Overall Survival: Soyoung Im, Hyun Joo Choi, Changyoung Yoo, Ji-Han Jung, Ye-Won Jeon, Young Jin Suh, Chang Suk Kang; Korean J Pathol. 2013;47(2):116-123. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.116

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Abstract PDF

Background

The hedgehog (Hh) signaling pathway is known to play a critical role in various malignancies, but its clinicopathologic role in breast cancer is yet to be established.

Methods

Tissue microarray blocks from 334 cases of breast cancer were prepared. The expression of six Hh signaling proteins including sonic hedgehog (Shh), patched (Ptch), smoothened (Smo), and the glioma-associated oncogene (Gli)-1, Gli-2, and Gli-3 were analyzed immunohistochemically.

Results

The expression of Hh signaling proteins was significantly correlated with some prognostic factors including the correlation of lymph node metastasis with the expression of Shh (p=0.001) and Ptch (p=0.064), the correlation of the stages with Shh and Gli-3 expression (p=0.007 and p=0.024, respectively), the correlation of the nuclear grade with the Smo (p=0.004) and Gli-3 (p=0.000), and the correlation of the histologic grade with the Ptch (p=0.016), Smo (p=0.007), and Gli-3 (p=0.000). The Shh, Ptch, Smo, Gli-1, and Gli-2 expression was significantly different between the phenotypes (p=0.000, p=0.001, p=0.004, p=0.039, and p=0.031, respectively). Gli-2 expression was correlated with a worse overall survival outcome (p=0.012).

Conclusions

Hh pathway activation is correlated with a more aggressive clinical behavior in breast carcinomas. The comparison of phenotypes suggested that the Hh pathway may be a useful therapeutic target for breast carcinoma. Patients with Gli-2 expression had a significantly lower overall survival rate and, therefore, it showed promise as a prognostic marker.

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Fine Needle Aspiration Cytology of Thyroid Follicular Neoplasm: Cytohistologic Correlation and Accuracy: Changyoung Yoo, Hyun Joo Choi, Soyoung Im, Ji Han Jung, Kiouk Min, Chang Suk Kang, Young-Jin Suh; Korean J Pathol. 2013;47(1):61-66. Published online February 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.1.61

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Abstract PDF

Background

This study evaluated the accuracy of fine needle aspiration cytology (FNAC) in cases of follicular neoplasm (FN) on the basis of histologic diagnosis, and reviewed the cytologic findings of FN according to the FNAC.

Methods

Among the 66 cases diagnosed with thyroid FN by FNAC during the 7-year period from 2003 to 2009, 36 cases that had undergone thyroid surgery were available for review. Cytologic diagnosis was compared with the histologic diagnosis of each case.

Results

Among the 36 cases with a cytologic diagnosis of thyroid FN, histologic diagnosis was as follows: 20 follicular adenomas (55.6%), 3 Hurthle cell adenomas (8.3%), 2 follicular carcinomas (5.6%), 8 nodular goiters (22.2%), 2 papillary carcinomas (5.6%), and 1 Hashimoto's thyroiditis (2.8%), resulting in a diagnostic accuracy of FNAC for thyroid FN of 69.5%.

Conclusions

This study shows that FNAC for thyroid FN is a useful primary screening method because when FN is diagnosed by FNAC, the rate of FN histologic diagnosis is relatively high, however, adequate sampling and experience is a prerequisite for this procedure.

Citations

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Correlation of Bethesda Categories in Thyroid Lesions With Histopathology: A Single Tertiary Care Center Experience
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Practical and challenging issue in thyroid cytopathology
Qianqian Zhang, Belen Padial Urtueta, Elisabetta Merenda, Gabriele Rotondaro, Noemi Morelli, Alessia Piermattei, Patrizia Straccia, Federica Cianfrini, Angela Feraco, Alessia Granitto, Antonino Mule, Esther Diana Rossi
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Prevalence and Predictors of Malignancy in Contralateral Thyroid Lobe in Patients Undergoing Completion Thyroidectomy
Pradipta Kumar Parida, Siddhartha Pradhan, Chapity Preetam, Pradeep Pradhan, Dillip Kumar Samal, Saurav Sarkar
Indian Journal of Otolaryngology and Head & Neck Surgery.2022; 74(S2): 2053. CrossRef
Ultrasonographic and cytologic assessments of follicular neoplasms of the thyroid: Predictive features differentiating follicular carcinoma from follicular adenoma
Hye Shin Ahn, Hee Sung Kim, Min Ji Hong, Paula Soares
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2019 Practice guidelines for thyroid core needle biopsy: a report of the Clinical Practice Guidelines Development Committee of the Korean Thyroid Association
Chan Kwon Jung, Jung Hwan Baek, Dong Gyu Na, Young Lyun Oh, Ka Hee Yi, Ho-Cheol Kang
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Preoperative diagnostic categories of fine needle aspiration cytology for histologically proven thyroid follicular adenoma and carcinoma, and Hurthle cell adenoma and carcinoma: Analysis of cause of under- or misdiagnoses
Hee Young Na, Jae Hoon Moon, June Young Choi, Hyeong Won Yu, Woo-Jin Jeong, Yeo Koon Kim, Ji-Young Choe, So Yeon Park, Paula Soares
PLOS ONE.2020; 15(11): e0241597. CrossRef
Core needle biopsy of thyroid nodules: outcomes and safety from a large single-center single-operator study
Jooae Choe, Jung Hwan Baek, Hye Sun Park, Young Jun Choi, Jeong Hyun Lee
Acta Radiologica.2018; 59(8): 924. CrossRef
Cytological Features That Differentiate Follicular Neoplasm from Mimicking Lesions
Kanghee Han, Hwa-Jeong Ha, Joon Seog Kong, Jung-Soon Kim, Jae Kyung Myung, Jae Soo Koh, Sunhoo Park, Myung-Soon Shin, Woo-Tack Song, Hye Sil Seol, Seung-Sook Lee
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Comparison of the Diagnostic Efficacy of Ultrasound‐Guided Core Needle Biopsy With 18‐ Versus 20‐Gauge Needles for Thyroid Nodules
Hye Shin Ahn, Mirinae Seo, Su Min Ha, Hee Sung Kim
Journal of Ultrasound in Medicine.2018; 37(11): 2565. CrossRef
Subclassification of Bethesda Atypical and Follicular Neoplasm Categories According to Nuclear and Architectural Atypia Improves Discrimination of Thyroid Malignancy Risk
Joel Xue Yi Lim, Min En Nga, Dedrick Kok Hong Chan, Wee Boon Tan, Rajeev Parameswaran, Kee Yuan Ngiam
Thyroid.2018; 28(4): 511. CrossRef
The expression profile of integrin receptors and osteopontin in thyroid malignancies varies depending on the tumor progression rate and presence of BRAF V600E mutation
Galina Chernaya, Nina Mikhno, Tatiana Khabalova, Svetlana Svyatchenko, Lyudmila Mostovich, Sergey Shevchenko, Lyudmila Gulyaeva
Surgical Oncology.2018; 27(4): 702. CrossRef
The Usefulness of Immunocytochemistry of CD56 in Determining Malignancy from Indeterminate Thyroid Fine-Needle Aspiration Cytology
Hyunseo Cha, Ju Yeon Pyo, Soon Won Hong
Journal of Pathology and Translational Medicine.2018; 52(6): 404. CrossRef
Core Needle Biopsy of the Thyroid: 2016 Consensus Statement and Recommendations from Korean Society of Thyroid Radiology
Dong Gyu Na, Jung Hwan Baek, So Lyung Jung, Ji-hoon Kim, Jin Yong Sung, Kyu Sun Kim, Jeong Hyun Lee, Jung Hee Shin, Yoon Jung Choi, Eun Ju Ha, Hyun Kyung Lim, Soo Jin Kim, Soo Yeon Hahn, Kwang Hwi Lee, Young Jun Choi, Inyoung Youn, Young Joong Kim, Hye Sh
Korean Journal of Radiology.2017; 18(1): 217. CrossRef
Radiofrequency ablation of small follicular neoplasms: initial clinical outcomes
Su Min Ha, Jin Yong Sung, Jung Hwan Baek, Dong Gyu Na, Ji-hoon Kim, Hyunju Yoo, Ducky Lee, Dong Whan Choi
International Journal of Hyperthermia.2017; : 1. CrossRef
A meta‐analytic review of the Bethesda System for Reporting Thyroid Cytopathology: Has the rate of malignancy in indeterminate lesions been underestimated?
Patrizia Straccia, Esther Diana Rossi, Tommaso Bizzarro, Chiara Brunelli, Federica Cianfrini, Domenico Damiani, Guido Fadda
Cancer Cytopathology.2015; 123(12): 713. CrossRef
Impact of NRAS Mutations on the Diagnosis of Follicular Neoplasm of the Thyroid
Ja-Seong Bae, Seung Kyu Choi, Sora Jeon, Yourha Kim, Sohee Lee, Youn Soo Lee, Chan Kwon Jung
International Journal of Endocrinology.2014; 2014: 1. CrossRef
Diagnosis of Thyroid Follicular Neoplasm: Fine-Needle Aspiration Versus Core-Needle Biopsy
Ra Gyoung Yoon, Jung Hwan Baek, Jeong Hyun Lee, Young Jun Choi, Min Ji Hong, Dong Eun Song, Jae Kyun Kim, Jong Ho Yoon, Won Bae Kim
Thyroid.2014; 24(11): 1612. CrossRef

A Proposal for Creating a Guideline for Cancer Registration of the Fibromatosis, PEComa Group, Malignant Lymphoma In Situ and Dendritic Cell Tumors (III): Changyoung Yoo, Chang Suk Kang, Yoon La Choi, Hye Yoon Kang, Jin Man Kim, Young Hye Koh, Joo Hee Lee, Seung Sook Lee, In Sun Kim, Dong Hoon Kim, Yong Ku Park, Jin Hee Sohn; Korean J Pathol. 2012;46(5):436-442. Published online October 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.5.436

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Abstract PDF: Background
Understanding the biologic behavior of a tumor is a prerequisite for tumor registration code assignment. The aim of this report was to propose appropriate behavior codes of the International Classification of Disease Oncology 3 (ICD-O3) to rare, yet pathologically interesting hematopoietic and soft tissue tumors.
Methods
The Study Group for Hematopathology, the Bone and Soft Tissue Pathology Study Group, and the Cancer Registration Committee prepared the questionnaire containing provisional behavior codes of selected diseases.
Results
In situ lesions of mantle cell and follicular lymphomas, dendritic cell tumors, and neoplasms with perivascular epithelioid cell differentiation (PEComa), not otherwise specified were classified as malignant (-/3). The fibromatosis group, with the exception of lipofibromatosis, was proposed as benign (-/0). Lipofibromatosis and several diseases that belong to the PEComa group were proposed as uncertain malignant potential (-/1). For the hematologic and soft tissue tumors, 274 and 288 members of the Korean Society of Pathologists, respectively, provided opinions through questionnaire, and most responders showed agreement with the provisional behavior code proposed.
Conclusions
The determination of behavior codes for the rare diseases described in this study, especially those of the PEComa group or malignant lymphoma, could be viewed as impractical and premature, but this study provides the basis for future research on this topic.

Proposal for Creating a Guideline for Cancer Registration of Microinvasive Tumors of the Breast and Ovary (II): Jin Hee Sohn, Gyungyub Gong, Kyu Rae Kim, Chang Suk Kang, Youn Soo Lee, Jin Man Kim, Woo Hee Jung, Kwang Sun Suh; Korean J Pathol. 2012;46(3):226-232. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.226

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Abstract PDF

Background

Cancer registration in Korea has a longer than 30-years of history, during which time cancer registration has improved and become well-organized. Cancer registries are fundamental for cancer control and multi-center collaborative research. However, there have been discrepancies in assigning behavior codes. Thus, we intend to propose appropriate behavior codes for the International Classification of Disease Oncology, 3rd edition (ICD-O-3) for microinvasive tumors of the ovary and breast not only to improve the quality of the cancer registry but also to prevent conflicts.

Methods

As in series I, two pathology study groups and the Cancer Registration Committee of the Korean Society of Pathologists (KSP) participated. To prepare a questionnaire on provisional behavior code, the relevant subjects were discussed in the workshop, and consensus was obtained by convergence of opinion from members of KSP.

Results

Microinvasive tumor of the breast should be designated as a microinvasive carcinoma which was proposed as malignant tumor (/3). Serous borderline tumor with microinvasion of the ovary was proposed as borderline tumor (/1), and mucinous borderline tumor with microinvasion of the ovary as either borderline (/1) or carcinoma (/3) according to the tumor cell nature.

Conclusions

Some issues should be elucidated with the accumulation of more experience and knowledge. Here, however, we present our second proposal.

Citations

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Update on the Proposal for Creating a Guideline for Cancer Registration of the Gastrointestinal Tumors (I-2)
Eun Sun Jung, Yun Kyung Kang, Mee-Yon Cho, Joon Mee Kim, Won Ae Lee, Hee Eun Lee, Sunhoo Park, Jin Hee Sohn, So-Young Jin
Korean Journal of Pathology.2012; 46(5): 443. CrossRef
A Proposal for Creating a Guideline for Cancer Registration of the Fibromatosis, PEComa Group, Malignant LymphomaIn Situand Dendritic Cell Tumors (III)
Changyoung Yoo, Chang Suk Kang, Yoon La Choi, Hye Yoon Kang, Jin Man Kim, Young Hye Koh, Joo Hee Lee, Seung Sook Lee, In Sun Kim, Dong Hoon Kim, Yong Ku Park, Jin Hee Sohn
Korean Journal of Pathology.2012; 46(5): 436. CrossRef

Expression of Human Papillomavirus-Related Proteins and Its Clinical Implication in Tonsillar Squamous Cell Carcinoma: Joon Seon Song, Min-Sik Kim, Joon Wook Park, Youn Soo Lee, Chang Suk Kang; Korean J Pathol. 2012;46(2):177-186. Published online April 25, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.2.177

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Abstract PDF

Background

Human papillomavirus (HPV) is known to cause of oropharyngeal squamous cell carcinoma (SqCC). HPV positive SqCCs overexpress p16 and are associated with better survival. Several markers of cell cycles and apoptosis have been reported as a prognostic value. We examined the prognostic value of HPV status, p16, cyclin D1, and Bcl-2 in patients with tonsillar SqCC.

Methods

Tissue microarrays were constructed in 56 cases of tonsillar SqCC for which we performed an immunohistochemistry and an in situ hybridization (ISH) of the HPV.

Results

Of the 56 cases, 31 (55.3%) were positive for p16 and 20 (35.7%) were positive for HPV ISH. The expressions of p16, cyclin D1, and Bcl-2 were not correlated with the clinicopathologic variables including smoking status, differentiation and pT- and pN-stages. The HPV ISH positive group showed a better overall survival than the HPV negative group (p=0.04), and the p16 positive group showed a better disease free survival (DFS) than the negative group (p=0.016). Cox regression analysis showed that only p16 positivity was an independent prognostic factor for DFS (p=0.03; hazard ratio, 10.1).

Conclusions

Our results indicate that both p16 expression and HPV status are useful indicators for risk stratification in patients with tonsillar SqCC.

Citations

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Positive Rate of Human Papillomavirus and Its Trend in Head and Neck Cancer in South Korea
Hyun Woong Jun, Yong Bae Ji, Chang Myeon Song, Jae Kyung Myung, Hae Jin Park, Kyung Tae
Frontiers in Surgery.2022;[Epub] CrossRef
Negative Prognostic Implication of TERT Promoter Mutations in Human Papillomavirus–Negative Tonsillar Squamous Cell Carcinoma Under the New 8th AJCC Staging System
Hyunchul Kim, Mi Jung Kwon, Bumjung Park, Hyo Geun Choi, Eun Sook Nam, Seong Jin Cho, Kyueng-Whan Min, Eun Soo Kim, Hee Sung Hwang, Mineui Hong, Taeryool Koo, Hyo Jung Kim
Indian Journal of Surgical Oncology.2021; 12(S1): 134. CrossRef
In situ hybridization for high risk HPV E6/E7 mRNA in oropharyngeal squamous cell carcinoma
Krish Suresh, Parth V. Shah, Sydney Coates, Borislav A. Alexiev, Sandeep Samant
American Journal of Otolaryngology.2021; 42(1): 102782. CrossRef
Prevalence of high-risk human papillomavirus and its genotype distribution in head and neck squamous cell carcinomas
Yuil Kim, Young-Hoon Joo, Min-Sik Kim, Youn Soo Lee
Journal of Pathology and Translational Medicine.2020; 54(5): 411. CrossRef
Human Papillomavirus Testing in Head and Neck Carcinomas: Guideline From the College of American Pathologists
James S. Lewis, Beth Beadle, Justin A. Bishop, Rebecca D. Chernock, Carol Colasacco, Christina Lacchetti, Joel Todd Moncur, James W. Rocco, Mary R. Schwartz, Raja R. Seethala, Nicole E. Thomas, William H. Westra, William C. Faquin
Archives of Pathology & Laboratory Medicine.2018; 142(5): 559. CrossRef
Detection of HPV infection in head and neck cancers: Promise and pitfalls in the last ten years: A meta-analysis
Carolin G�tz, Clara Bischof, Klaus-Dietrich Wolff, Andreas Kolk
Molecular and Clinical Oncology.2018;[Epub] CrossRef
Frequent hepatocyte growth factor overexpression and low frequency of c-Met gene amplification in human papillomavirus–negative tonsillar squamous cell carcinoma and their prognostic significances
Mi Jung Kwon, Dong Hoon Kim, Hye-Rim Park, Hyung Sik Shin, Ji Hyun Kwon, Dong Jin Lee, Jin Hwan Kim, Seong Jin Cho, Eun Sook Nam
Human Pathology.2014; 45(7): 1327. CrossRef
Human papillomavirus‐stratified analysis of the prognostic role of miR‐21 in oral cavity and oropharyngeal squamous cell carcinoma
Yoon Ho Ko, Hye Sung Won, Der Sheng Sun, Ho Jung An, Eun Kyoung Jeon, Min Sik Kim, Han Hong Lee, Jin Hyoung Kang, Chan Kwon Jung
Pathology International.2014; 64(10): 499. CrossRef
Human Papillomavirus Prevalence and Cell Cycle Related Protein Expression in Tonsillar Squamous Cell Carcinomas of Korean Patients with Clinicopathologic Analysis
Miji Lee, Sung Bae Kim, Sang-wook Lee, Jong-Lyel Roh, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim, Kyung-Ja Cho
Korean Journal of Pathology.2013; 47(2): 148. CrossRef

Case Reports

A Cutaneous Myoepithelial Carcinoma Arising in a Papillary Eccrine Adenoma.: Ji Han Jung, Soyoung Im, Seok Jin Kang, Gyong Moon Kim, Ki Taik Han, Jin Young Yoo, Chang Suk Kang; Korean J Pathol. 2011;45(6):644-649.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.644

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Abstract PDF

Cutaneous myoepithelial neoplasms and papillary eccrine adenomas (PEA) are rare conditions. Malignant tumors within a PEA are even rarer, with only one case reported to date. Herein, we present an extremely rare case of a cutaneous myoepithelial carcinoma arising in a PEA in a 70-year-old man presenting a solid mass in the left buttock. Histopathologically, most of the resected tumor revealed features consistent with the diagnosis of PEA. Some small nests and nodules were intermixed with the PEA and were present adjacent to the PEA. The tumor cells of nests and nodules showed ovoid to spindle shaped nuclei and slightly eosinophilic cytoplasm. Immunohistochemically, they were positive for both epithelial and myogenic markers, consistent with myoepithelioma. An inguinal lymph node with a metastatic lesion showed the same findings of myoepithelioma despite inconspicuous atypia. Our case showed malignant transformation of the myoepithelial cells at the outermost layers of the PEA.

Citations

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TRPS1::PLAG1 Fusion in a Primary Cutaneous Myoepithelial Carcinoma: A Case Report and Literature Review
Timber Gillis, Jenika Howell, Fatemeh Jafarian
Journal of Cutaneous Pathology.2026; 53(2): 169. CrossRef
Papillary eccrine adenoma associated with syringocystadenoma papilliferum
Neha Meena, PrafullaKumar Sharma, Sawan Kumar, Minakshi Bhardwaj
Indian Journal of Dermatology, Venereology and Leprology.2018; 84(3): 322. CrossRef
Pleural fluid metastases of myoepithelial carcinoma: A case report and review of the literature
Alicia Calderon Bhambra, Yanhong Zhang, Eric C. Huang, John Bishop, Mahan Matin, Alaa Afify
CytoJournal.2016; 13: 13. CrossRef
Myoepithelial carcinoma of buccal mucosa: A rare tumor
Jeevan Lata, Fahad Ahmad, Vimal Chand
Contemporary Clinical Dentistry.2014; 5(2): 247. CrossRef

Systemic Plasmacytosis: A Case Report with a Review of the Literature.: Sung Hak Lee, Chang Young Yoo, Ji Han Jung, Jin Young Yoo, Suk Jin Kang, Chang Suk Kang; Korean J Pathol. 2011;45(6):632-638.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.632

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Abstract PDF

Systemic plasmacytosis is an uncommon disorder characterized by widely disseminated macular skin eruptions composed of polyclonal lymphoplasmacytic infiltrates associated with variable extracutaneous involvement. An aggressive clinical course has been observed in a small number of patients, but most cases have followed chronic and benign clinical course without spontaneous remission. Previously reported cases of this entity have been described almost exclusively in Japanese patients. We recently experienced a case of systemic plasmacytosis in a 48-year-old Korean female patient. Initial skin biopsy specimen revealed patchy perivascular and periadnexal infiltrates of mature plasma cells. Serum immunoelectrophoresis revealed polyclonal hypergammaglobulinemia, and polyclonal plasmacytosis was noted on the subsequent biopsy specimens of left supraclavicular and axillary lymph nodes. Multiple tiny pulmonary nodules appeared six years after the initial cutaneous presentation and were found to be of the same histologic appearance. We herein report a rare case of systemic plasmacytosis with a review of the literature.

Citations

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Cutaneous plasmacytosis with mast cell infiltration
Sarina Jain, RohitV Hede, UdayS Khopkar
Indian Journal of Dermatology, Venereology and Leprology.2020; 86(1): 91. CrossRef
Plasmocitosis cutánea en un varón de raza blanca
A. López-Gómez, T. Salas-García, A. Ramírez-Andreo, E. Poblet-Martínez
Actas Dermo-Sifiliográficas.2015; 106(6): 520. CrossRef
Cutaneous Plasmacytosis in a White Man
A. López-Gómez, T. Salas-García, A. Ramírez-Andreo, E. Poblet-Martínez
Actas Dermo-Sifiliográficas (English Edition).2015; 106(6): 520. CrossRef

Original Articles

Prognostic Significance of Amplification of the c-MYC Gene in Surgically Treated Stage IB-IIB Cervical Cancer.: Tae Jung Kim, Ahwon Lee, Sung Jong Lee, Won Chul Lee, Yeong Jin Choi, Kyo Young Lee, Chang Suk Kang; Korean J Pathol. 2011;45(6):596-603.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.596

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Abstract PDF

BACKGROUND
Mutations of c-MYC have been described in cervical cancer. However, association between c-MYC gene status and its prognostic significance have not been clarified.
METHODS
Tissue microarray sections from 144 patients with stage IB-IIB cervical cancer treated by radical hysterectomy were analyzed by fluorescence in situ hybridization using a region-specific probe for c-MYC and a centromere-specific probe for chromosome 8.
RESULTS
Seventy five percent (108/144) of c-MYC gain and 6.9% (10/144) of c-MYC gene amplification were observed. c-MYC gene alteration was more frequently observed in squamous cell carcinoma than adenocarcinoma or adenosquamous carcinoma and were associated with low Ki67 labeling index (p=0.013). c-MYC amplification was not associated with clinicopathologic parameters except absence of bcl2 expression (p=0.048). Survival analysis revealed that patients with c-MYC amplification were significantly associated with higher risk of disease recurrence (p=0.007) and cancer related death (p=0.020). However, c-MYC gain was not associated with unfavorable outcome. Multivariate analysis proved c-MYC amplification as independent prognostic factors of shorter disease free survival and cancer-related death (p=0.028 and p=0.025, respectively).
CONCLUSIONS
c-MYC amplification, not gain, is an independent prognostic marker for shorter disease free and cancer specific survival in cervical cancer treated by radical hysterectomy.

Citations

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A Rare Case of Cutaneous Plasmacytosis in a Korean Male
Corey Georgesen, Meenal Kheterpal, Melissa Pulitzer
Case Reports in Pathology.2017; 2017: 1. CrossRef

Detection Limit of Monoclonal B-Cells Using Multiplex PCR and Laser-Induced Fluorescence Capillary Electrophoresis.: Sung Hak Lee, Yeonsook Moon, Byunghoo Song, Hyung Nam Lee, Ahwon Lee, Eun Sun Jung, Yeong Jin Choi, Kyo Young Lee, Chang Suk Kang, Gyeongsin Park; Korean J Pathol. 2011;45(6):582-588.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.582

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Abstract PDF

BACKGROUND
The identification of monoclonality has been widely used for making diagnoses of lymphoproliferative lesions. Awareness of the sensitivity and detection limit of the technique used would be important for the data to be convincing.
METHODS
We investigated the minimum requirement of cells and sensitivity of gel electrophoresis (GE) and laser-induced fluorescence capillary electrophoresis (LFCE) for identifying IgH gene rearrangement using BIOMED-2 protocols. DNA extracted from Raji cells were diluted serially with peripheral blood mononuclear cells (PBMNCs) DNA. DNA from mixtures of diffuse large B-cell lymphoma (DLBCL) and reactive lymph nodes were also serially diluted.
RESULTS
For Raji cells, the detection limit was 62 and 16 cell-equivalents for GE and LFCE, respectively. In the condition with PBMNCs mixture, 2.5% and 1.25% of clonal cells was the minimum requirement for GE and LFCE, respectively. In 23% of DLBCL cells in tissue section, the detection limit was 120 and 12 cell-equivalents for GE and LFCE, respectively. In 3.2% of DLBCL cells, that was 1,200 and 120 cell-equivalents for GE and LFCE, respectively.
CONCLUSIONS
These results show that LFCE method is more sensitive than GE and the sensitivity of clonality detection can be influenced by the amount of admixed normal lymphoid cells.

Citations

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Molecular pathology diagnosis of diffuse large B cell lymphoma using BIOMED-2 clonal gene rearrangements
Saeid Ghorbian
Annals of Diagnostic Pathology.2017; 29: 28. CrossRef

WHO Classification of Malignant Lymphomas in Korea: Report of the Third Nationwide Study.: Jin Man Kim, Young Hyeh Ko, Seung Sook Lee, Jooryung Huh, Chang Suk Kang, Chul Woo Kim, Yun Kyung Kang, Jai Hyang Go, Min Kyung Kim, Wan Seop Kim, Yoon Jung Kim, Hyun Jung Kim, Hee Kyung Kim, Jong Hee Nam, Hyung Bae Moon, Chan Kum Park, Tae In Park, Young Ha Oh, Dong Wha Lee, Jong Sil Lee, Juhie Lee, Hyekyung Lee, Sung Chul Lim, Kyu Yun Jang, Hee Kyung Chang, Yoon Kyung Jeon, Hye Ra Jung, Min Sun Cho, Hee Jeong Cha, Suk Jin Choi, Jae Ho Han, Sook Hee Hong, Insun Kim; Korean J Pathol. 2011;45(3):254-260.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.3.254

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Abstract PDF

BACKGROUND
The aim of study was to determine the relative frequency of malignant lymphoma according to World Health Organization (WHO) classification in Korea.
METHODS
A total of 3,998 cases diagnosed at 31 institutes between 2005 and 2006 were enrolled. Information including age, gender, pathologic diagnosis, site of involvement and immunophenotypes were obtained.
RESULTS
The relative frequency of non-Hodgkin lymphoma (NHL) and Hodgkin lymphoma (HL) was 95.4% and 4.6%, respectively. B-cell lymphomas accounted for 77.6% of all NHL, while T/natural killer (T/NK)-cell lymphomas accounted for 22.4%. The most frequent subtypes of NHL were diffuse large B-cell lymphoma (42.7%), extranodal marginal zone B-cell lymphoma (MZBCL) of mucosa-associated lymphoid tissue (19.0%), NK/T-cell lymphoma (6.3%) and peripheral T-cell lymphoma (PTCL), unspecified (6.3%), in decreasing order. The relative frequency of HL was nodular sclerosis (47.4%), mixed cellularity (30.6%), and nodular lymphocyte predominant (12.1%) subtypes. Compared with a previous study in 1998, increase in gastric MZBCL and nodular sclerosis HL, and slight decrease of follicular lymphoma, PTCL, and NK/T-cell lymphoma were observed.
CONCLUSIONS
Korea had lower rates of HL and follicular lymphoma, and higher rates of extranodal NHL, extranodal MZBCL, and NK/T-cell lymphoma of nasal type compared with Western countries. Changes in the relative frequency of lymphoma subtypes are likely ascribed to refined diagnostic criteria and a change in national health care policy.

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Hyun Hwang, Jae Ho Shin, Yon Kwon Ihn, Sungjun Han, Hong Sik Park
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Heejung Chae, Dok Hyun Yoon
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The Korean Journal of Medicine.2018; 93(3): 300. CrossRef
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International Journal of Environmental Research and Public Health.2017; 14(4): 344. CrossRef
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Treatment outcome and risk analysis for cataract after radiotherapy of localized ocular adnexal mucosa-associated lymphoid tissue (MALT) lymphoma
Hee Hyun Park, Sea-Won Lee, Soo Yoon Sung, Byung Ock Choi
Radiation Oncology Journal.2017; 35(3): 249. CrossRef
The prognostic significance of CD11b+CX3CR1+ monocytes in patients with newly diagnosed diffuse large B-cell lymphoma
Ho-Young Yhim, Jeong-A Kim, Sun-Hye Ko, Youngrok Park, Eunjung Yim, Hee Sun Kim, Jae-Yong Kwak
Oncotarget.2017; 8(54): 92289. CrossRef
Epidural Lymphoma Mimicking Hematoma: A Case Report
Dong-Yeong Lee, Soon-Taek Jeong, Kun-Tae Kim, Jung-Wook Yang, Dong-Hee Kim
Journal of Korean Society of Spine Surgery.2017; 24(1): 49. CrossRef
A phase II study of oxaliplatin and prednisone for patients with relapsed or refractory marginal zone lymphoma: Consortium for Improving Survival of Lymphoma trial
Sung Yong Oh, Won Seog Kim, Jin Seok Kim, Yee Soo Chae, Gyeong-Won Lee, Hyeon Seok Eom, Hun Mo Ryoo, Suee Lee, Seok Jin Kim, Dok Hyun Yoon, Jong Ho Won, Junshik Hong, Jinny Park, Sang-Min Lee, Jung Yong Hong, Eunkyung Park, Hyo Jung Kim, Deok-Hwan Yang, H
Leukemia & Lymphoma.2016; 57(6): 1406. CrossRef
Diffuse Large B-Cell Lymphoma of the Peri-Implant Mucosa Mimicking Peri-Implantitis
Seong-Ho Jin, Gyeongsin Park, Youngkyung Ko, Jun-Beom Park
Journal of Oral Implantology.2016; 42(2): 220. CrossRef
The Roles of Radiotherapy and Chemotherapy in the Era of Multimodal Treatment for Early-Stage Nasal-Type Extranodal Natural Killer/T-Cell Lymphoma
Tae Hyung Kim, Jin Seok Kim, Yang-Gun Suh, Jaeho Cho, Woo-Ick Yang, Chang-Ok Suh
Yonsei Medical Journal.2016; 57(4): 846. CrossRef
Treatment outcomes of IMEP as a front-line chemotherapy for patients with peripheral T-cell lymphomas
Ji Young Lee, Sang Min Lee, Moon Young Choi, Ki Hyang Kim, Young Don Joo, Sung Nam Im, Won Sik Lee
Blood Research.2016; 51(3): 187. CrossRef
Immune reconstitution inflammatory syndrome versus non-immune reconstitution inflammatory syndrome lymphoma in HIV patients on antiretroviral therapy
Pyoeng Gyun Choe, Jinyong Park, Wan Beom Park, Tae Min Kim, Kyoung-Ho Song, Ji Hwan Bang, Eu Suk Kim, Sang Won Park, Hong Bin Kim, Nam Joong Kim, Myoung-don Oh, Kang Won Choe
International Journal of STD & AIDS.2016; 27(11): 1013. CrossRef
Clinical outcome and prognosis of patients with primary sinonasal tract diffuse large B-cell lymphoma treated with rituximab-cyclophosphamide, doxorubicin, vincristine and prednisone chemotherapy: a study by the Consortium for Improving Survival of Lympho
Gyeong-Won Lee, Se-Il Go, Seok-Hyun Kim, Junshik Hong, Yu Ri Kim, Sukjoong Oh, Sung-Yong Kim, Young Rok Do, Hyewon Lee, Soon Il Lee, Sung Hwa Bae, Sung Yong Oh, Moo Kon Song, Won-Sik Lee, Bohee Lee, Jin Seok Kim, Min Kyoung Kim, Hye Jin Kang, Jae-Sook Ahn
Leukemia & Lymphoma.2015; 56(4): 1020. CrossRef
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Je Hun Kim, Ho Sup Lee, Jun Seop Lee, Jin Young Lee, Su Young Kim, Cheol Su Kim, Joung Wook Yang, Ga In You
Kosin Medical Journal.2015; 30(1): 29. CrossRef
A Case of Simultaneous Primary Gastric and Duodenal Mucosa-Associated Lymphoid Tissue Lymphoma after Therapeutic Endoscopy
Sun Hee Park, Jae Young Jang, Min A Park, Hyuck Kim, Young Woon Chang
Korean Journal of Medicine.2015; 89(1): 64. CrossRef
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Hokyung Choung, Young A Kim, Namju Kim, Min Joung Lee, Sang In Khwarg
Korean Journal of Ophthalmology.2015; 29(5): 285. CrossRef
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Hyun-Jun Cho, Jang-Bo Lee, Junseok W. Hur, Sung-Won Jin, Tai-Hyoung Cho, Jung-Yul Park
Korean Journal of Spine.2015; 12(3): 177. CrossRef
Radiotherapy as an effective treatment modality for follicular lymphoma: a single institution experience
Seo Hee Choi, Jaeho Cho, Jin Seok Kim, June-Won Cheong, Chang-Ok Suh
Radiation Oncology Journal.2015; 33(4): 310. CrossRef
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Keiji Iwatsuki, Toshihisa Hamada
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Cancer Research and Treatment.2014; 46(1): 33. CrossRef
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Korean Journal of Pathology.2014; 48(2): 81. CrossRef
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Korean Journal of Pathology.2014; 48(1): 73. CrossRef
Peripheral T cell lymphoma in Asia
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International Journal of Hematology.2014; 99(3): 227. CrossRef
Characteristics of Cutaneous Lymphomas in Korea According to the New WHO-EORTC Classification: Report of a Nationwide Study
Jae Ho Han, Young-Hyeh Ko, Yun Kyung Kang, Wan-Seop Kim, Yoon Jung Kim, Insun Kim, Hyun-Jung Kim, Soo Kee Min, Chan-Kum Park, Chan-Sik Park, Bong-Kyung Shin, Woo Ick Yang, Young-Ha Oh, Jong Sil Lee, Juhie Lee, Tae Hui Lee, Hyekyung Lee, Ho Jung Lee, Yoon
Korean Journal of Pathology.2014; 48(2): 126. CrossRef
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Sanghui Park, Young H. Ko
The Journal of Dermatology.2014; 41(1): 29. CrossRef
Overexpression of sphingosine-1-phosphate receptor 1 and phospho-signal transducer and activator of transcription 3 is associated with poor prognosis in rituximab-treated diffuse large B-cell lymphomas
Jin Ho Paik, Soo Jeong Nam, Tae Min Kim, Dae Seog Heo, Chul-Woo Kim, Yoon Kyung Jeon
BMC Cancer.2014;[Epub] CrossRef
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Jooryung Huh
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Hyeong Kug Kim, In Sung Cho, Hye Kyung Lee, Yong Hun Choi, Seong Min Cho, Hyun Jin Moon, Jin A Lee
Korean Journal of Medicine.2012; 83(2): 263. CrossRef
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Jae-Sook Ahn, Taek-Keun Nam
Korean Journal of Medicine.2012; 83(6): 712. CrossRef
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Gyeongsin Park, Chang Suk Kang
Korean Journal of Medicine.2012; 83(6): 689. CrossRef
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Alteration of Apoptosis-Related Proteins (Apaf-1, Caspase-9, Bcl-2, p53, and Survivin) According to Malignant Progression in Cutaneous Melanocytic Lesions.: Yeo Ju Kang, Ji Han Jung, Kwnag Il Yim, Kyo Young Lee, Youn Soo Lee, Seok Jin Kang, Chang Suk Kang, Si Yong Kim; Korean J Pathol. 2011;45(3):247-253.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.3.247

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Abstract PDF: BACKGROUND
Apoptosis protease activating factor-1 (Apaf-1), caspase-9, Bcl-2, p53, and survivin are important factors in the pathway of apoptosis, but their clinicopathologic significance remains unclear in human cutaneous melanoma. We investigated the expression of these proteins and their clinical value in human cutaneous melanocytic lesions.
METHODS
We performed an immunohistochemical analysis to examine the expression and distribution of Apaf-1, caspase-9, Bcl-2, p53, and survivin in 36 cases of malignant melanoma (22 cases of primary melanoma and 14 cases of metastatic melanoma) and 41 cases of melanocytic nevus.
RESULTS
The expression of p53 was significantly higher in malignant melanoma than in melanocytic nevus (p<0.01), however the expressions of Apaf-1 and caspase-9 were significantly lower in malignant melanoma compared with melanocytic nevus (p<0.01 and p=0.027, respectively). Also, there was a significant difference for Bcl-2 staining between primary melanomas and metastatic lesions (p=0.004). Nuclear staining for survivin were absent in nevus, but were positive in 14 of 36 melanomas (p<0.01).
CONCLUSIONS
The altered expression of Apaf-1, caspase-9, p53, and survivin are considered to be related to malignant progression in human cutaneous melanocytic lesions. Loss of Bcl-2 can be considered as a prognostic marker of malignant melanomas.

Case Report

Lipofibromatosis: A Case Report.: Tae Eun Kim, Tae Jung Kim, Youn Soo Lee, Chang Suk Kang, Sang In Shim, Kyo Young Lee; Korean J Pathol. 2011;45(1):106-110.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.1.106

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Abstract PDF: Lipofibromatosis is a recently described rare benign fibrofatty tumor of childhood. It typically forms as an ill defined, slowly growing, painless mass. We present here the case of lipofibromatosis that occurred in a 21-year-old male who had complained of a bulging enlarged mass involving the right thigh and prepatella area for the previous 1 year. Magnetic resonance imaging showed an ill-defined reticular infiltration in the subcutaneous layer with subtle linear enhancement and high T2 signal intensity. The mass was surgically excised and it displayed an 11.0x5.5x1.5 cm-sized adipose appearance without encapsulation. Microscopically, the tumor was composed of alternating streaks of mature adipose tissue and a fibroblastic component that mainly involved the septa of adipose tissue. On immunohistochemical study, the fibroblastic component was positive for S-100, CD99, CD34, actin and bcl-2. He has shown an eventful recovery for 6 months after surgery.

Original Articles

Comparison of Detecting Methods of BK Virus Infection in Patients with Renal Allograft Recipients.: Sung Hak Lee, Youn Jun Park, Chul Woo Yang, Yong Soo Kim, In Sung Moon, Chang Suk Kang, Yeong Jin Choi; Korean J Pathol. 2010;44(6):636-641.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.636

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Abstract PDF

BACKGROUND
BK virus nephropathy (BKVN) is an emerging problem as a consequence of the use of potent immunosuppressive agents. Because optimal detection methods for the diagnosis of BKVN are required clinically, we compared the results of renal allograft biopsy, urine cytology, and urine and blood viral loads.
METHODS
Four hundred sixty two case notes from 2004 to 2009 at Seoul St. Mary's Hospital were reviewed. During that period, 286 cases of urine cytology for decoy cells, 938 cases of urine BKV reverse transcription-polymerase chain reaction (RT-PCR), and 1,029 cases of blood BKV RT-PCR were performed. All diagnostic methods were performed in 85 cases.
RESULTS
A histological diagnosis of BKVN was made in 2.4% of cases (11/462). Urine cytology for decoy cells was positive in 26.2% (75/286). BKV RT-PCR revealed viruria in positivity of 22.1% (207/938) and viremia in 5.2% (54/1,029). In cases of BKVN, the sensitivities of urine and blood BKV RT-PCR were all 100% and the specificities were 69% and 94.5%, respectively. In cases with positive urine decoy cells, the sensitivities of urine and blood BKV RT-PCR were 50% and 27.7%, with specificities of 77.7% and 100%, respectively.
CONCLUSIONS
BKV screening by RT-PCR assays may be a clinically useful noninvasive test to identify renal recipients with concurrent BKVN.

Citations

Citations to this article as recorded by

Prevalence of BK Virus among Iranian Renal Transplant Recipients: A Systematic Review and Meta-Analysis
Mohsen Ebrahimi, Alireza Mohebbi, Mohammad Mostakhdem Hashemi, Mobina Ashrafi Shahmirzadi
Journal of Clinical and Basic Research.2020; 4(4): 50. CrossRef
Asymptomatic hematuria associated with urinary polyomavirus infection in immunocompetent patients
Sung Hak Lee, Sung Hoo Hong, Ji Youl Lee, Tae Kon Hwang, Kyoung Suk Kim, Hyoungnam Lee, Yeong Jin Choi
Journal of Medical Virology.2014; 86(2): 347. CrossRef

Clinical Implication of Oct4 Expression in Squamous Cell Carcinoma of Lung.: Tae Jung Kim, Youn Soo Lee, Kyo Young Lee, Chang Suk Kang; Korean J Pathol. 2010;44(6):631-635.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.631

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Abstract PDF

BACKGROUND
Octamer-4 (Oct4), a transcriptional factor involved in regulating embryonic stem cells, may play a role in tumorigenesis. Since little is known about the role of Oct4 as a prognostic factor for squamous cell carcinoma (SCC) of lung, we investigated its expression in SCC tissue and its clinicopathologic significance.
METHODS
Formalin-fixed, paraffin embedded tissues from 79 patients, including 44 complete resections and 35 biopsies, obtained from 1995 to 2008 were immunostained for Oct4, scored, and scores correlated with clinicopathologic parameters and survival.
RESULTS
Oct4 expression in tumors was significantly associated with peripheral location (vs central location) (p = 0.004) and pleural invasion (p = 0.018). In 44 complete resections, survival analysis revealed that Oct4 expression and increased stage (II and III vs I) were significantly associated with worse survival in univariate analysis (p = 0.005 and p = 0.009, respectively) and in multivariate analysis (p = 0.024 and p = 0.033, respectively).
CONCLUSIONS
The expression of Oct4 and high stage in SCC of lung are significant predictors of a poor prognosis and diminished overall survival.

Citations

Citations to this article as recorded by

The Prognostic and Clinicopathologic Characteristics of OCT4 and Lung Cancer: A Meta-Analysis
Hui Li, Liwen Wang, Shupeng Shi, Yadong Xu, Xuejiao Dai, Hongru Li, Jing Wang, Qiong Zhang, Yonggang Wang, Shuming Sun, Yanping Li
Current Molecular Medicine.2019; 19(1): 54. CrossRef

Distribution of Dendritic Cells and Regulatory T-Cells in Cutaneous Lymphomas.: Changyoung Yoo, Young Seon Hong, Baik Kee Cho, Sang Ho Kim, Sang In Shim, Chang Suk Kang; Korean J Pathol. 2010;44(6):581-588.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.581

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Abstract PDF: BACKGROUND
Dendritic cells (DCs) play an important role in immune reactions. This study was designed to identify the distribution patterns of DCs and regulatory T-cells (Tregs) in cutaneous lymphomas.
METHODS
Immunohistochemistry was used to determine langerin expression on Langerhans cells, CD11b on inflammatory DCs, CD209 and CD11c on dermal DCs, CD303 on plasmacytic DCs, and Foxp3 on Tregs in 81 cases of cutaneous lymphomas.
RESULTS
Various DCs and Tregs were identified in most cutaneous lymphomas. Plasmacytic DCs, inflammatory DCs and Tregs were identified mainly in tumor areas, whereas dermal DCs were distributed both in the tumor and stromal areas. Among DCs, dermal DCs were most prominently identified in the cutaneous lymphomas not only in the tumor area but also in the stroma. The intense stromal infiltration of dermal DCs was consistent finding in T-cell lymphomas. Diffuse large B-cell lymphoma (DLBCL), not otherwise specified also showed intense stromal infiltration of dermal DCs, but stromal infiltration in DLBCL, leg type was relatively scant.
CONCLUSIONS
The results suggest that all types of DCs and Tregs are involved in cutaneous lymphoma tumor immunity. Among them dermal DCs may play a dominant role.

Case Report

Primary Malignant Melanoma of the Urinary Bladder: A Case Report.: Sung Hak Lee, Eun Deok Chang, Eun Jung Lee, Chang Suk Kang; Korean J Pathol. 2010;44(2):216-219.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.2.216

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Abstract PDF: Primary malignant melanoma in the bladder is very rare, with only 18 cases having been currently reported. A 65-year-old male patient presented with a 5-month history of gross hematuria. On ultrasonography, an 8.1 x 6.1 cm mass was revealed on the bladder wall. A partial cystectomy was performed. Microscopically, the tumor was composed of atypical, pigmented melanocytes that were positive for S-100 protein and they were negative for human melanoma black-45. Although he underwent supportive therapy, an 8.7 x 5.9 cm mass occupying the prevesical space was noted on a follow-up computed tomography scan 4 months later. Two nodules of the left lower lung and multiple enlarged lymph nodes in the left external iliac chain were also revealed. The patient declined any further treatment. The histogenesis of primary bladder melanoma is uncertain, but an origin from neural crest cells has been proposed. The prognosis for patients with this tumor is still poor despite the availability of several therapeutic options.

Original Article

Korean Pediatric/Adolescent Lymphoma: Incidence and Pathologic Characteristics.: Seung Sook Lee, Jin Man Kim, Young Hyeh Ko, Jooryung Huh, Chang Suk Kang, Chul Woo Kim, Yun Kyung Kang, Jai Hyang Go, Min Kyung Kim, Wan Seop Kim, Yoon Jung Kim, Hyun Jung Kim, Hee Kyung Kim, Jong Hee Nam, Hyung Bae Moon, Chan Kum Park, Tae In Park, Young Ha Oh, Dong Wha Lee, Jong Sil Lee, Juhie Lee, Hyekyung Lee, Sung Chul Lim, Kyu Yun Jang, Hee Kyung Chang, Yoon Kyung Jeon, Hye Ra Jung, Min Sun Cho, Hee Jeong Cha, Suk Jin Choi, Jae Ho Han, Sook Hee Hong, Insun Kim; Korean J Pathol. 2010;44(2):117-124.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.2.117

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Abstract PDF

BACKGROUND
The Hematopathology Study Group of the Korean Society of Pathologists conducted a nation-wide retrospective analysis of Korean pediatric lymphoma, to provide pathologic data on pediatric/adolescent lymphoma subtypes and features.
METHODS
All lymphoma cases of all age groups were collected during a recent 2 year-period (2005-2006) from 32 institutes in Korea. Among 3,686 lymphoma patients, 142 who were age 18 or less were classified according to the World Health Organization (WHO) classification.
RESULTS
Among 142 pediatric/adolescent lymphoma patients, Hodgkin lymphoma accounted for 21 (14.8%) and non-Hodgkin lymphoma (NHL) for 121 (85.2%). Hodgkin lymphoma appears to be more common in the pediatric/adolescent age group than in the all-ages group (14.8% vs 4.4%). T- and natural killer cell-NHL was more common in the pediatric/adolescent age group than in the all ages group (46.3% vs 22%). The majority of Korean pediatric/adolescent NHL cases was composed of Burkitt lymphoma, T- or B-lymphoblastic lymphoma, anaplastic large-cell lymphoma, and diffuse large B-cell lymphoma. For lymphoma patients under the age of 6 years, most had B-lymphoblastic or Burkitt lymphoma, which commonly presented at extranodal sites.
CONCLUSIONS
The distribution of lymphoma subtypes in the pediatric/adolescent age group is quite different from the distribution of adults, but it was quite similar to distribution in Western countries.

Citations

Citations to this article as recorded by

A Case of Nasal Type Extranodal NK/T Cell Lymphoma Incidentally Detected in a Child
Ha Jin Oh, Sang Hyun Park, Hae In Jang, Dong Hoon Lee, Yoo Duk Choi, Hee Jo Baek, Hoon Kook
Clinical Pediatric Hematology-Oncology.2015; 22(1): 76. CrossRef

Case Report

The Cytologic Features of Chronic Myelogenous Leukemia and Its Lymphoid Blast Phase in Body Fluid: A Case Report.: Soyoung Im, Changyoung Yoo, Youn Soo Lee, Chang Suk Kang, Sang In Sim, Kyo Young Lee; Korean J Pathol. 2009;43(2):189-194.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.2.189

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Abstract PDF: Although chronic myelogenous leukemia (CML) may be involved in any part of the body, infiltration of the body fluid has rarely reported in the literature. Here we report on a 35 year-old male patient who was diagnosed chronic myelogenous leukemia ten years previously and he received allogenic hematopoietic stem cell transplantation. He then presented with left knee pain eight years after the initial diagnosis. MRI revealed a soft tissue mass at the distal femur. Cytology of the joint fluid revealed myeloblasts, promyelocytes, eosinophilic myelocytes, band neutrophils, megakaryocytes and orthochromatic erythroblasts, which was all consistent with leukemic infiltration of the knee joint fluid. The immunohistochemistry was positive for CD34, CD117 and myeloperoxidase (MPO). Despite that the patient underwent radiation therapy, MRI revealed growth of the mass, and ten months later, the lymphoid blast phase of CML was confirmed after biopsy. The patient received an above knee amputation. Five months later, multiple masses were revealed on PET-CT at the left iliopsoas muscle, abdominal wall and bones. Bilateral pleural effusion occurred shortly after this. Cytologic evaluation of the pleural fluid also revealed blast-like cells, and histologic evaluation of the abdominal mass confirmed the lymphoid blast phase of CML with positivity for CD3, UCHL-1, CD34 and CD117, but negativity for MPO.

Original Article

The Cytology for Leukemic Cells in Cerebrospinal Fluid; Comparison of Conventional Cytology with Liquid-Based Cytology.: Changyoung Yoo, Youn Soo Lee, Chang Suk Kang, Sang In Shim, Kyo Young Lee; Korean J Pathol. 2009;43(2):164-170.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.2.164

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Abstract PDF: BACKGROUND
The cytological examination of cerebrospinal fluid (CSF) using conventional cytology with a cytocentrifuge (cytospin) is an important method for evaluating the involvement of leukemia in the CNS. Liquid-based cytology (LBC) is now a widely used cytological method not only for gynecological and non-gynecological specimens, but its application to CSF for the identification of leukemic cell has not yet been reported. In this study, we tried to compare conventional cytology with using a cytospin with LBC and Papanicolaou (Pap) staining. We also examined the modified LBC with Wright staining to assess whether this modified method can be useful for diagnosing Leukemia.
METHODS
We studied 30 cases of CSF that were obtained from 16 patients, including 17 cases of acute myeloid leukemia, 12 cases of acute lymphoblastic leukemia and 1 case of diffuse large B cell lymphoma. We applied conventional cytology with a cytocentrifuge (cytospin), LBC with Pap staining and modified LBC with Wright staining.
RESULTS
The morphological features of the LBC with Pap staining showed difficulty for interpretation when compared with conventional cytology with a cytospin, and mainly because of cellular shrinkage. The modified LBC with Wright staining showed good morphological features.
CONCLUSIONS
We suggest that modified LBC with Wright staining may be useful for examining CSF.

Editorial

The Korean Journal of Cytopathology: From Foundation to Unification with the Korean Journal of Pathology.: So Young Jin, Chang Suk Kang; Korean J Pathol. 2009;43(1):1-3.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.1.1

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Abstract PDF

No abstract available.

Citations

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Advancing pathology through sixty volumes: reflections and future directions
Chan Kwon Jung, So Yeon Park, Soon Won Hong
Journal of Pathology and Translational Medicine.2026; 60(1): 1. CrossRef
History of the Official Journal Published by the Korean Society of Pathologists: From the Korean Journal of Pathology to the Journal of Pathology and Translational Medicine
Se Hoon Kim, Chong Jai Kim, SoonWon Hong
Journal of Pathology and Translational Medicine.2017; 51(1): 1. CrossRef

Review

Quality Control Program and Its Results of Korean Society for Cytopathologists.: Hye Kyung Lee, Sung Nam Kim, Shin Kwang Khang, Chang Suk Kang, Hye Kyoung Yoon; J Pathol Transl Med. 2008;19(2):65-71.; DOI: https://doi.org/10.3338/kjc.2008.19.2.65

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Abstract PDF

In Korea, the quality control(QC) program forcytopathology was introduced in 1995. The program consists of a checklist for the cytolopathology departments, analysis data on all the participating institutions' QC data, including the annual data on cytologic examinations, the distribution of the gynecological cytologic diagnoses, as based on The Bethesda System 2001, and the data on cytologic-histolgical correlation of the gynecological field, and an evaluation for diagnostic accuracy. The diagnostic accuracy program has been performed 3 times per year with using gynecological, body fluid and fine needle aspiration cytologic slides. We report here on the institutional QC data and the evaluation for diagnostic accuracy since 2004, and also on the new strategy for quality control and assurance in the cytologic field. The diagnostic accuracy results of both the participating institutions and the QC committee were as follows; Category 0 and A: about 94%, Category B: 4~5%, Category C: less than 2%. As a whole, the cytologic daignostic accuracy is relatively satisfactory. In 2008, on site evaluation for pathology and cytology laboratories, as based on the "Quality Assurance Program for Pathology Services" is now going on, and a new method using virtual slides or image files for determining the diagnostic accuracy will be performed in November 2008.

Citations

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Eun-Suk PARK
Korean Journal of Clinical Laboratory Science.2025; 57(2): 228. CrossRef
Diagnostic proficiency test using digital cytopathology and comparative assessment of whole slide images of cytologic samples for quality assurance program in Korea
Yosep Chong, Soon Auck Hong, Hoon Kyu Oh, Soo Jin Jung, Bo-Sung Kim, Ji Yun Jeong, Ho-Chang Lee, Gyungyub Gong
Journal of Pathology and Translational Medicine.2023; 57(5): 251. CrossRef
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Hye Ryoung Shin, Taekil Eom, Wan-Su Choi
Biomedical Science Letters.2023; 29(3): 144. CrossRef
Current status of cytopathology practice in Korea: impact of the coronavirus pandemic on cytopathology practice
Soon Auck Hong, Haeyoen Jung, Sung Sun Kim, Min-Sun Jin, Jung-Soo Pyo, Ji Yun Jeong, Younghee Choi, Gyungyub Gong, Yosep Chong
Journal of Pathology and Translational Medicine.2022; 56(6): 361. CrossRef
Current status of cytopathology practices in Korea: annual report on the Continuous Quality Improvement program of the Korean Society for Cytopathology for 2018
Yosep Chong, Haeyoen Jung, Jung-Soo Pyo, Soon Won Hong, Hoon Kyu Oh
Journal of Pathology and Translational Medicine.2020; 54(4): 318. CrossRef
Continuous quality improvement program and its results of Korean Society for Cytopathology
Yoo-Duk Choi, Hoon-Kyu Oh, Su-Jin Kim, Kyung-Hee Kim, Yun-Kyung Lee, Bo-Sung Kim, Eun-Jeong Jang, Yoon-Jung Choi, Eun-Kyung Han, Dong-Hoon Kim, Younghee Choi, Chan-Kwon Jung, Sung-Nam Kim, Kyueng-Whan Min, Seok-Jin Yoon, Hun-Kyung Lee, Kyung Un Choi, Hye
Journal of Pathology and Translational Medicine.2020; 54(3): 246. CrossRef
Current Status of and Perspectives on Cervical Cancer Screening in Korea
Sung-Chul Lim, Chong Woo Yoo
Journal of Pathology and Translational Medicine.2019; 53(4): 210. CrossRef
Current Cytology Practices in Korea: A Nationwide Survey by the Korean Society for Cytopathology
Eun Ji Oh, Chan Kwon Jung, Dong-Hoon Kim, Han Kyeom Kim, Wan Seop Kim, So-Young Jin, Hye Kyoung Yoon
Journal of Pathology and Translational Medicine.2017; 51(6): 579. CrossRef
Comparison of Unsatisfactory Samples from Conventional Smear versus Liquid-Based Cytology in Uterine Cervical Cancer Screening Test
Hoiseon Jeong, Sung Ran Hong, Seoung-Wan Chae, So-Young Jin, Hye Kyoung Yoon, Juhie Lee, Eun Kyung Kim, Sook Tai Ha, Sung Nam Kim, Eun-Jung Park, Jong Jae Jung, Sun Hee Sung, Sung-chul Lim
Journal of Pathology and Translational Medicine.2017; 51(3): 314. CrossRef
The Usefulness of p16INK4aImmunocytochemical Staining in ASC-H Patients
Kwang Il Yim, Yeo-Ju Kang, Tae Eun Kim, Gyeongsin Park, Eun Sun Jung, Yeong-Jin Choi, Kyo-Young Lee, Chang Seok Kang, Ahwon Lee
The Korean Journal of Pathology.2011; 45(3): 290. CrossRef

Case Reports

Squamous Cell Carcinoma Developed in Nevus Sebaceus: A Case Report.: Hyun Joo Choi, Jinyoung Yoo, Lee So Maeng, Seok Jin Kang, Chang Suk Kang; Korean J Pathol. 2004;38(1):60-63.

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Abstract PDF: We report a case of squamous cell carcinoma developed within the nevus sebaceus (NS) and review the literature. An 82-year-old woman presented with a 3-month history of pain within the lifelong skin lesion on her right cheek. Examination revealed a 1.0 x 1.0 cm poorly marginated, slightly raised yellow-brown nodule. Microscopically, the skin nodule revealed the typical findings of NS. Squamous cell carcinoma developed contiguously within the keratin-filled infundibulocyst of NS disconnected from the epidermis. We suggest that squamous cell carcinoma is derived from the embryonal stratum germinativum de-differentiated from the primary epithelial germ cells in the infundibulocyst of NS. Most secondary carcinomas associated with NS grow slowly over a period of years. In contrast, squamous cell carcinoma developed in NS often grow rapidly with aggressive behavior. Thus, the accurate pathologic diagnosis is necessary.

Cytologic Features of Adenoma Malignum of the Uterine Cervix: A Case Report.: Hyun Joo Choi, Young Shin Kim, Kyo Young Lee, Chang Suk Kang, Sang In Shim; J Pathol Transl Med. 1998;9(2):201-206.

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Abstract PDF: Adenoma malignum is an extremely well-differentiated variant of cervical adeno carcinoma in which the cells composing the tumor lack the typical cytological features of malignancy. The prognosis of this rare tumor is poor in spite of high degree of differentiation. The cytologic characteristics are extremely bland, so frequently make a confusion of adenoma malignum with endocervical glandular hyperplasia. We report a case of adenoma malignum in a 36-year-old woman who complained of mucoid vaginal discharge and vaginal bleeding. The cervicovaginal smear showed endocervical cells exhibiting a spectrum of atypical changes. The cells were arranged in multilayered strips and monolayered sheets. Individual cells ranged from cuboidal to columnar; typically the columnar cells had abundant lacy or vacuolated cytoplasm. The smear showed the majority of only atypical cells and small numbers of frankly malignant cells.

Original Article

The Expression of p53, c-erbB-2 and nm23 Proteins in Breast Cancer.: Kyo Young Lee, Yong Goo Kim, Young Shin Kim, Kyung Ja Han, Chang Suk Kang, Jean A Kim, Won Il Kim, Sang In Shim; Korean J Pathol. 1999;33(2):88-95.

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Abstract: Recently, p53, c-erbB-2 and nm23 proteins have been studied in breast cancer. The expression of p53 protein indicates the mutation of p53 gene known as a tumor supressor gene, and c-erbB-2 gene amplification has been considered an indicator of poor prognosis and nm23 a metastsis suppressor gene. In order to elucidate the roles and relations of these proteins in the develpoment, progression and metastasis in breast cancer, we studied 89 cases of invasive breast cancer and 32 cases of lymph node metastasis for the expression of p53, c-erbB-2 and nm23 proteins using an immunohistochemical method. The results were as follows: 1) The expression rates of p53, c-erbB-2, and nm23 proteins in breast cancer were 40.4%, 34.8% and 55.1%, respectively. Co-expression of p53 protein and c-erbB-2 protein was found in 20.2% of cases, showing the highest incidence in poorly differentiated type (40%). 2) p53 protein expression was increased in poorly differentiated type but was not statistically significant. On the other hand, the expression of nm23 protein was decreased in poorly differentiated type, which was statistically significant (p<0.05). 3) The correlation of p53 protein expression with c-erbB-2 protein expression was statistically significant (p<0.05) but that with nm23 protein was not. 4) In the cases with lymph node metastasis, discordant expression of p53, c-erbB-2 and nm23 proteins between primary tumor and the lymph node metastatic tumor was found in 9.4%, 3.1% and 18.8% of cases, respectively. The above results suggest that overexpression of p53 and c-erbB-2 proteins and downregulation of nm23 protein are associated with the tumor progression in the breast cancer.

Case Reports

Conjunctival Pigmented Actinic Keratosis: A Case Report.: Jinyoung Yoo, Ji Han Jung, Hyun Joo Choi, Seok Jin Kang, Chang Suk Kang; Korean J Pathol. 2004;38(2):113-115.

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Abstract PDF: We recently had a case of pigmented actinic keratosis arising in the conjunctiva, and this is an unusual site for the lesion. Most actinic keratoses are seen on sun-exposed areas of the skin, especially for Caucasians living in sunny climates. When these lesions are pigmented, they may resemble lentigo maligna. A 56-year-old man was referred to the ophthalmology clinic for a pigmented conjunctival lesion. An ophthalmologic examination revealed multiple dark brown-colored, linear or irregular shaped patches located on the lateral side of the conjunctiva in his right eye, partially covering the cornea, and this made a clinical differentiation from other possible pigmented lesions somewhat difficult. A histologic examination of the subsequent biopsy specimen demonstrated acanthosis with melanocytes containing heavy melanin, scattered dyskeratotic cells, atypical keratinocytes, and solar elastosis, and all of their findings are consistent with pigmented actinic keratosis.

Metastatic Carcinoma of the Vermiform Appendix: A Report of A Case.: Ki Hwa Yang, Chang Suk Kang, Suck Jin Kang, Sun Moo Kim; J Pathol Transl Med. 1985;19(2):250-254.

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Abstract PDF: Though the primary carcinoma of the vermiform appendix is rare, the secondary carcinoma of the vermiform appendix is extremely rare. About fourty cases have been reported through the world. The breast is most common primary site, and adenocarcinoma is most common form. The metastatic carcinoma of the vermiform appendix, from squamous cell carcinoma of the uterine cervix, were extremely rare. The authors experienced a case of metastatic squamous cell carcinoma of the vermiform appendix, in thirty-two years old housewife. She was diagnosed with carcinoma of the uterine cervix on December, 1983, and treated with a radical hysterectomy on February, 1984, at Chicago, and with a radiation therapy. She had been suffered from palpable masses on left axilla and left neck region, and and coughing and chest pain. After an excision biopsy, on August, 1984, she showed intestinal obstruction sign including abdominal distension with abdominal pain. A right-sided hemicolectomy was performed on November, 1984. During gross examination, the wall of the distal portion of the vermiform appendix was moderatery thickened, and showed homogeneous light yellow cut surface. On microscopic examination, there were clusters of tumors that had negative stained preparations. On electron microscopic examination, the secretory granules were not found, and the characteristics of squamous cells, including intercellular spaces, desmosomes and tonofibrils, were noted.

Original Article

Expression of Survivin According to Malignant Progression of Breast Lesions.: Hyun Joo Choi, Ji Han Jung, Chan Kwon Jung, Jinyoung Yoo, Eun Jung Lee, Chang Suk Kang, Seok Jin Kang, Kyo Young Lee; Korean J Pathol. 2007;41(4):238-243.

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Abstract PDF: BACKGROUND
The aim of this study was to examine the survivin expression pattern in benign lesions, atypical ductal hyperplasias (ADH), ductal carcinomas in situ (DCIS) and in invasive carcinomas of the breast and to evaluate the effect of expression of this marker on the malignant progression of breast cancers. In addition, the relationship between the expression of the marker and the clinicopathological characteristics for invasive carcinomas were investigated.
METHODS
Immunohistochemical staining using a tissue microarray method for survivin was performed for 103 benign lesions, 30 ADHs, 26 DCISs and 116 invasive carcinomas.
RESULTS
The expression of cytoplasmic survivin was higher for invasive carcinomas than for ADHs and DCISs (p<0.05). For breast invasive carcinomas, expression of cytoplasmic survivin significantly correlated with tumor size, lymph node metastasis and stage (p<0.05).
CONCLUSIONS
These results suggest that overexpression of cytoplasmic survivin may be involved in the development of the late stage of breast malignancy, especially invasiveness. In breast invasive carcinomas, expression of survivin may be a useful indicator for the evaluation of patient prognosis.

Case Reports

Sarcomatoid Transitional Cell Carcinoma of the Renal Pelvis A report of two cases.: Kyo Young Lee, Mi seon Kwon, Yeong Jin Choi, Chang Suk Kang, Seok Jin Kang, Baying Kee Kim, Sang In Shim; Korean J Pathol. 1999;33(2):128-132.

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Abstract: Sarcomatoid carcinomas are malignant epithelial neoplasms in which the tumor cells assume a partial or complete spindle cell pattern of growth, leading to the erroneous classification of some true carcinomas as sarcomas. These spindle cells are malignant and manifest various amount of both vimentin and cytokeratin. Positive reaction of some of the spindle cells for cytokeratin antibodies is confirmatory. Clinical features do not differ significantly from those of patients with high-grade transitional cell carcinoma. So far, 13 cases of sarcomatoid transitional cell carcinoma of the renal pelvis have been reported in English and Korean literature. In this report, we describe clinicopathologic features of recently observed two cases of sarcomatoid transitional cell carcinoma of the renal pelvis and summarize the pathologic findings of previously reported cases with review of the literature.

B-cell Prolymphocytic Leukemia Involving Entire Female Genital Tract: A case report.: Hee Jung Lee, Young Shin Kim, Yong Gu Kim, Kyung Ja Han, Kyo Young Lee, Chang Suk Kang, Sang In Shim, Jong Wook Lee, Woong Shick Ahn, Soo Pyung Aim, Seung Il Kim; Korean J Pathol. 1999;33(2):145-148.

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Abstract: Prolymphocytic leukemia is a chronic lymphoproliferative disorder, characterized by prominent splenomegaly, prolymphocytes accounting for more than 55% of circulating lymphocytes, no significant peripheral lymphadenopathy and short term survival with terminal fatal multi-organ failure. We report a case of B-cell prolymphocytic leukemia in a 57-year-old woman who presented with easy bruising and arthritis for 1 year and low abdominal pain for 2 months. Physical examination revealed gingival hypertrophy and mild splenomegaly. On peripheral blood smears the leukocytes were markedly increased in number due to leukemic cells that count about 62% of leukocytes. The bone marrow aspiration smear and biopsy revealed diffuse infiltration of medium to large prolymphocytes having moderate amount of basophilic cytoplasm, round to oval nuclei with coarse chromatin, and prominent nucleoli. Abdominal pain aggravated despite chemotherapy, and pelvic computed tomography (CT) revealed a huge lobular pelvic mass which had increased in size on the follow-up CT. Total hysterectomy with bilateral adnexectomy was performed. Microscopic findings included massive infiltration of prolymphocytic cells in the uterus, upper vaginal wall, bilateral ovaries, and bilateral mesosalpinges. On immunohistochemistry, the leukemic cells showed B cell gamma light chain phenotype.

Original Article

Loss of Heterozygosity of Chromosome 3p in Squamous Cell Carcinomas and Adenocarcinomas of the Lung.: Gyeong Shin Park, Young Shin Kim, Kyo Young Lee, Chang Suk Kang, Sang In Shim, Byung Kee Kim; Korean J Pathol. 1999;33(3):151-157.

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Abstract PDF: We evaluated the frequency of genetic alteration of chromosome 3p in lung cancer, and analyzed the patterns of genetic alterations between two distinct histologic types, squamous cell carcinomas (SCC) and adenocarcinomas (AC). PCR-LOH analysis for 40 Korean non-small cell lung cancer including 20 SCC and 20 AC was performed using microsatellite markers, D3S1300, D3S1029 and D3S1038. These markers represented the loci of FHIT gene (3p14), mismatch repair gene hMLH1 (3p21) and VHL gene (3p25), respectively. For SCC, the frequency of LOH at D3S1300, D3S1029 and D3S1038 was 78.6%, 61.5% and 64.3%, and for AC, was 62.5%, 62.5% and 46.7%, and for total 40 cases of SCC and AC, was 70.0%, 62.1% and 55.2%, respectively. Among 27 cases showing heterozygosity at three examined loci, 7 cases (25.9%) revealed LOH at only one locus and 16 cases (59.3%) revealed LOH at two or three loci. The differences of incidence of LOH and the patterns of genetic alterations at chromosome 3p between two distinct histologic types of lung cancer were not significant. The genetic deletion of relatively broad area, including more than two loci, was more frequent than that of small area, including only one locus.

Case Reports

Fine Needle Aspiration Cytology of a Pilomatrixoma Misdiagnosed as Carcinoma: A Case Report.: Ji Han Jung, Young Shin Kim, Kyo Young Lee, Chang Suk Kang, Sang In Shim; J Pathol Transl Med. 1999;10(1):91-96.

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Abstract PDF: Sometimes a pilomatrixoma on upper neck can be misdiagnosed as primary salivary gland tumor, skin adnexal tumor or metastatic carcinoma. On fine needle aspiration cytology(FNAC), characteristic features are ghost cells, basaloid cells, and calcium deposits, among which presence of ghost cells seems to be the key to recognize it. Here we present a cytologically misdiagnosed case of pilomatrixoma. A 32-year-old man presented a subcutaneous mass on the right posterior neck. It has grown slowly for 1 year, and was nontender, well circumscribed, hard, and movable mass. An initial FNAC yielded only monomorphic population of highly mitotic basaloid cells, without anucleated ghost cells, chronic inflammatory cells or foreign-body giant cells, suggestive of a poorly differentiated carcinoma. However, that was inconsistent with patient's clinical findings. For further correct diagnosis, FNAC was repeated, which yielded the basaloid cells and foreign-body giant cells. The diagnosis of pilomatrixoma could be made and the mass was excised. This case demonstrates that the pilomatrixoma should be considered in the differential diagnosis of subcutaneous aspirates containing not ghost cells but a dominant population of basaloid cells.

Fine Needle Aspiration Cytology of Peripheral T Cell Lymphoma of the Lung: A Case Report .: Ok Ran Shin, Eun Sun Jung, Youn Soo Lee, Chang Suk Kang, Byung Kee Kim, Sang In Shim; J Pathol Transl Med. 1999;10(2):157-162.

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Abstract PDF: Primary non-Hodgkin's lymphoma of the lung is rare among extranodal lymphomas. The most common form is low grade B-cell type originated from the mucosa-associated lymphoid tissue (MALT) of the lung and primary peripheral T cell lymphoma of the lung is extremely rare. We recently experienced a case of fine needle aspiration cytology of primary peripheral T cell lymphoma of the lung in a 39-year-old male patient. The cytologic smears revealed some sheets of reactive epithelial cells, epithelioid histiocytes, and numerous polymorphous population of lymphoid cells composed of small and intermediate sized lymphoid cells and mature lymphocytes. Lymphoid cells were slightly larger than normal mature lymphocytes and showed significant irregularity of nuclear membrane. The internal nuclear structure was marked by chromatin clumping, clear parachromatin areas, and inconspicuous nucleoli. Histopathologically, atypical small lymphocytes infiltrated in the interstitium and alveolar sac. By the immunohistochemical study and molecular biologic study of gene rearrangement, the T cell clonality of atypical lymphoid cells was confirmed.

Original Articles

Tissue Microarray Analysis of the Expression of p53, c-kit and CD34 in Sarcomas.: Jinyoung Yoo, Kyung Shin Park, Seok Jin Kang, Chang Suk Kang; Korean J Pathol. 2004;38(4):221-227.

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Abstract PDF: BACKGROUND
Our objectives in this study were to (1) evaluate the possible role of p53, c-kit and CD34 proteins in sarcomas and to determine their potential relationship; (2) use a tissue microarray to compare the immunohistochemical staining results on both the tissue microarrays and the corresponding whole tissue sections.
METHODS
Whole sections from 85 sarcomas were studied for the immunohistochemical expression of p53, c-kit and CD34. Tissue microarrays consisting of triplicate 2 mm cores from the corresponding blocks were constructed and stained according to the same protocols as those used for the whole sections.
RESULTS
On whole section analysis, p53 protein was expressed in 25 cases (29.4%). Expression of c-kit was observed in 31 specimens (36.5%), whereas CD34 expression was noted in 11 tumors (12.9%). The overall concordance between triplicates was 96% (217/226). The consensus score from the combined triplicates agreed with the results on the whole sections at 91.4% (233/255). The correlations between p53 and CD34, and between c-kit and CD34, were statistically significant (p=.028 and p=.010 respectively).
CONCLUSIONS
p53 and c-kit express relatively frequently in sarcomas. Tissue microarrays are an effective alternative to whole sections; however, the presence of triplicate punches seems to improve the yield but not the concordance of data.

The Apoptotic Molecular Changes of Cellular Injury in Mouse Testis Induced by Endocrine Disrupting Chemicals.: Eun Hui Wang, Kweon Heang Lee, Ki Hwa Yang, Jinsuk Lee, Eun Sun Jung, Chang Suk Kang, Yeong Jin Choi; Korean J Pathol. 2004;38(4):228-237.

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Abstract PDF: BACKGROUND
Spermatogenesis is regulated by various cellular reactions, and especially cell proliferation and apoptosis.
METHODS
We investigated the morphological changes and the apoptotic molecular changes in mouse testis induced by the endocrine disrupting chemicals. ICR mice were treated with bisphenol A (BPA), 2-bromopropane (2-BP) and diethylstilbesterol (DES). Histological examination and immunohistochemical staining, TUNNEL staining and RNAse protection assay were conducted.
RESULTS
Testes treated with BPA showed normal spermatogenesis and the proliferation activity, and the density of the cells was similar with those in the control. 2-BP and DES groups, which showed a decrease of germ cells near the basal layer and degenerative changes. The proliferative activity identified by PCNA staining was significantly decreased in the 2-BP and DES groups (p<0.05). The apoptosis was significantly increased in the 2-BP group however, a significant decrease was noted in the BPA group (p<0.05). Among apoptosis-related molecules, the expression of Fas, Fas ligand, TRAIL, TNFp55 and caspase 1, 3, 6 and 8 were changed according to the change of the degree of apoptosis in all groups.
CONCLUSIONS
Endocrine disrupting chemicals induced cellular injury in mouse testis through the changes of proliferative activity and apoptosis which was regulated by a number of apoptosis-related molecules. This probably results in the abnormality of spermatogenesis in mouse testis.

Case Reports

Fine Needle Aspiration Cytology of Columnar Cell Variant of Papillary Carcinoma of the Thyroid: A Case Report .: Ji Han Jung, Kyo Young Lee, Chang Suk Kang, Sang In Shim, Byung Kee Kim; J Pathol Transl Med. 1999;10(2):179-184.

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Abstract PDF: The columnar cell variant of papillary carcinoma is a rare tumor of the thyroid, associated with aggressive behavior, early metastasis, and a rapidly fatal course. We present the fine needle aspiration cytologic(FNAC) findings of columnar cell variant of papillary carcinoma with cytohistologic correlation. In the smears, the tumor fragments showed mainly papillary pattern and a few scattered individual cells were present around the papillary fragments. The tumor cells were columnar or cuboidal and exhibited pseudostratification of the nuclei. The nuclei were oval to elongated with finely stippled chromatin and inconspicous nucleoli. Neither nuclear grooves nor intracytoplasmic inclusion was found. The FNAC diagnosis was consistent with papillary carcinoma. Total thyroidectomy was done and the histologic finding of the mass showed a predominantly papillary and focal solid proliferation of columar cells with marked nuclear pseudostratification. The unique histopathologic features and highly aggressive nature of columnar cell variant of papillary carcinoma require that this variant should be differeniated from common papillary carcinoma of the thyroid.

Primary Pulmonary Hodgkin's Lymphoma: A case report.: Mi Seon Kwon, Kyo Young Lee, Chang Suk Kang, Byung Kee Kim, Sang In Shim, Myeong Im Ahn, Chi Hong Kim; Korean J Pathol. 1999;33(4):285-287.

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Abstract PDF: Primary pulmonary Hodgkin's lymphoma is a rare but distinct entity to be distinguished from nodal Hodgkin's lymphoma and from lymphomas involving lung secondarily. This lymphoma affects women more frequently than men, and typically involves superior portions of the lung. This case is reported to illustrate the clinical, radiographic and anatomic characteristics of the primary pulmonary Hodgkin's lymphoma. A 34-year-old woman presented for the evaluation of hemoptysis. A chest CT revealed a large poorly defined mass in the medial aspect of the right upper lobe, extending to the right mediastinum and trachea. The microscopic examination of the biopsied lesion revealed fibroblastic stroma infiltrated by a mixture of lymphocytes, histiocytes, and eosinophils. The clinical impression was inflammatory pseudotumor, presumably due to slightly favorable response to corticosteroid therapy. Two months later the patient's symptoms worsened despite the steroid therapy and a lobectomy was done. The specimen showed a soft to firm, pale yellow, ill defined mass, 10.0 8.0 cm, involving the visceral pleura. A few satellite nodules around the main mass were noted. The histologic findings were consistent with Hodgkin's lymphoma, nodular sclerosis type.

Original Articles

Expression of p53 and nm23 Proteins in Non-Small Cell Lung Cancer.: Mi Seon Kwon, Won Il Kim, Kyo Young Lee, Young Shin Kim, Chang Suk Kang, Sang In Shim; Korean J Pathol. 1997;31(6):499-507.

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Abstract PDF: To elucidate the role of p53 and nm23 in the development, progression, and metastasis of non-small cell lung cancer, we studied 91 paraffin sections of the primary non-small-cell lung cancers and the 34 paraffin sections of their metastatic lymph nodes using the immunohistochemical method. The results are as follows: 1) The incidence of p53 protein expression was positively correlated with the staging of lung cancers (p<0.025). 2) The incidence of p53 protein expression was higher in the lung cancers with lymph node metastasis than in those without lymph node metastasis (p=0.009). 3) The incidence of nm23 protein expression was lower in the adenocacinomas than in the squamous cell carcinomas (p=0.032). 4) The incidence of nm23 protein expression was lower in the lung cancers with lymph node metastasis than in those without lymph node metastasis (p=0.026). The expression of nm23 protein between the primary lung cancers and corresponding metastatic lymph nodes showed positive correlation (Kendall's Tau-b correlation coefficient=0.47140, p=0.0068). 5) The expression of p53 was not correlated with the expression of nm23 protein (Kendall's Tau-b correlation coefficient=0.11387, p=0.2800). The above results suggest that an overexpression of p53 protein and a downregulation of nm23 protein are associated with tumor progression and metastasis in non-small-cell lung cancer.

Loss of Heterozygosity on Chromosome 9p21, 17p13 and 3p in Human Astrocytic Tumor.: Youn Soo Lee, Chang Suk Kang, Seung Myung Dong, Jung Yong Lee, Sang In Shim, Byung Kee Kim; Korean J Pathol. 2001;35(4):330-337.

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Abstract PDF: BACKGROUND
The purpose of this study was to determine the genetic abnormalities of chromosomes 9p21, 17p13.1, 3p25 and 3p14.2 in the development and progression of astrocytic tumors.
METHODS
We performed loss of heterozygosity (LOH) analysis in 41 astrocytic tumors, including 20 astrocytomas, 11 anaplastic astrocytomas and 10 glioblastomas, and correlated the results of LOH at different histopathologic grades. LOH was determined by multiplex polymerase chain reaction analysis of the DNA, which was extracted by microdissection.
RESULTS
LOH of 9p21 was found in 55.6% of astrocytomas, 54.6% of anaplastic astrocytomas and 100.0% of glioblastomas. LOH of 17p13.1 was found in 21.4% of astrocytomas, 28.6% of anaplastic astrocytomas, and 66.7% of glioblastomas. LOH of 3p25 was found in 37.5% of astrocytomas, 16.7% of anaplastic astrocytomas, and 14.3% of glioblastomas. LOH of 3p14.2 was found in 16.7% of astrocytomas, 40.0% of anaplastic astrocytomas, and 42.9% of glioblastomas. LOH on chromosome 9p21 and 17p13.1 was closely related with the histopathologic grades.
CONCLUSIONS
These results may suggest that LOH of 9p21, 17p13.1, 3p25 and 3p14.2 involves an early event of astrocytoma development and accumulates during progression. LOH of 3p25 may be involved in the tumorigenesis of astrocytoma. Identification of these LOH may illuminate the stepwise pathogenesis of astrocytic tumors and predict the possibility of malignant transformation.

Case Report

Extraskeletal Chondroma Arising from Tongue and Tonsils: Three cases report.: Ki Ouk Min, Kyo Young Lee, Chang Suk Kang, Sang In Shim, Sun Moo Kim; Korean J Pathol. 1993;27(4):421-423.

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Abstract PDF: Three rare tumors of the oral cavity are presented. Lingual chondromas, approximately twenty to thirty cases appear to have been reported since the lesion was first described by Berry in 1892, which are usually seen on the lateral borders in the anterior two thirds of the tongue, while the ventral surface and the posterior third are rarely involved. Chondromas of the tonsil are of very rare occurrence, which are thought to arise as a result of metaplasia, rather than from embryonic rests, with chronic fibrosing inflammation being the inciting factor. Because of its rarity, the following cases of chondroma of the tongue and tonsil are being added to small list of such case reported in the literature.

Original Articles

Fine needle aspiration cytology of papillary carcinoma of the thyroid with numerous multinucleated giant cells.: Kyung Mi Kim, Kyo Young Lee, Chang Suk Kang, Sang In Shim, Sun Moo Kim; J Pathol Transl Med. 1993;4(1):62-65.

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Abstract PDF: No abstract available.

Expressions of p130Cas and FHIT, and Their Relationships with Prognostic Factors for Breast Carcinomas.: Hyun Joo Choi, Ji Han Jung, Jinyoung Yoo, Seok Jin Kang, Chang Suk Kang; Korean J Pathol. 2005;39(1):41-47.

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Abstract PDF: BACKGROUND
BCAR1/p130Cas protein is the human homologue of rat p130Cas protein, and it is a docking protein involved in the intracellular signaling pathways. This protein also causes the proliferating human breast cancer cells to be resistant to antiestrogen drugs. The fragile histidine triad (FHIT) protein is presumed to have a tumor suppressor function in a number of human tumors. The aim of this study was to investigate expressions of p130Cas and FHIT in breast carcinomas and to evaluate their relationship with the clinicopathological prognostic factors.
METHODS
A total of 93 cases of invasive breast carcinomas was retrospectively reviewed. The expressions of p130Cas and FHIT were examined by immunohistochemical methods.
RESULTS
p130Cas expression was observed in all breast carcinomas: p130Cas immunoreactivity was strongly positive in 39 cases (41.9%), moderately positive in 49 cases (52.7%) and weakly positive in 5 cases (5.4%) of 93 cases. It was statistically correlated with the p53 (p=0.035) and c-erbB-2 (p=0.024) expressions. The FHIT protein expression was markedly reduced or completely negative in 59 cases (63.4%), but it was not correlated with the clinicopathological prognostic factors. There was no significant correlation between p130Cas and FHIT expressions.
CONCLUSIONS
This study seems to provide meager information on whether these proteins may be useful prognostic factors, and so this topic needs further study.

Case Report

Fine Needle Aspiration Cytologic Findings of Thyroid Lymphoma: Report of Two Cases.: Hye Kyung Lee, Jong Min Lee, Chang Suk Kang; J Pathol Transl Med. 2002;13(1):33-37.

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Abstract PDF: We report two different types of thyroid lymphoma associated with Hashimoto's thyroiditis. Both showed autoantibodies and were compatible with Hashimoto's thyroiditis according to their clinical backgrounds. A 76-year-old female noted a painless, rapidly growing mass in her neck which was diagnosed as diffuse non-Hodgkin's lymphoma, large cell type, after the fine needle aspiration cytology of the thyroid. She underwent chemo-radiotherapy and is free of the disease 10 months after diagnosis. The other patient, a 73-year-old female with a diffuse goiter, was diagnosed on fine needle aspiration cytology as having Hashimoto's thyroiditis. Three years later she developed a hard nodular growth in the both lobes of the thyroid. This was subjected to fine needle aspiration cytology and needle biopsy and was diagnosed as a MALT lymphoma. She refused any treatment and died 12 months after the diagnosis.

Original Articles

S Phase Kinase Associated Protein 2 Expression in Breast Cancer and Its Prognostic Implications.: Eun Deok Chang, Eun Jung Lee, Se Jeong Oh, Chang Suk Kang; Korean J Pathol. 2005;39(2):69-73.

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Abstract PDF: BACKGROUND
S Phase Kinase Associated Protein 2 (Skp2), an F-box protein necessary for DNA replication, has recently been demonstrated to be an oncogene. The purpose of this study was to examine the Skp2 expression and to investigate its association with expressions of estrogen receptor (ER), androgen receptor (AR) and HER-2, as well as clinicopathological variables including tumor recurrence.
METHODS
The expressions of Skp2, ER and AR were examined by immunohistochemistry and HER-2 amplification by chromogenic in situ hybridization (CISH) in 117 cases of breast carcinoma.
RESULTS
Skp2 was expressed in 26 patients (22.2%) and was significantly correlated with tumor type (p=0.031), tumor grade (p=0.017) and ER expression (p=0.038). Twenty four (20.5%) of 117 patients had a tumor recurrence, and 6 patients (5.1%) died of multifocal metastases. Tumor recurrence was significantly correlated with histological grade (p=0.041) and lymph node status (p<0.001).
CONCLUSIONS
Although Skp2 expression was statistically insignificant in association with tumor recurrence, it might be useful as a biologic predictor in breast cancer. The simple and reliable immunohistochemical assay presented in this study can be a routine part of breast cancer evaluation and may influence patient management.

Expression of bcl-2, p53 and VEGF in Non-Small Cell Lung Carcinomas: Their Relation with the Microvascular Density and Prognosis.: Jinyoung Yoo, Ji Han Jung, Hyun Joo Choi, Seok Jin Kang, Chang Suk Kang; Korean J Pathol. 2005;39(2):74-80.

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Abstract PDF: BACKGROUND
The aim of this study was to investigate the expression of bcl-2, p53 and vascular endothelial growth factor (VEGF) in non-small cell lung cancer (NSCLC), and to examine the relationship between those protein expressions and neovascularization. We also analyzed the prognostic impact of these biological parameters on the patients' overall survival rate.
METHODS
The archival tumor tissues from 147 previously untreated patients with NSCLC were examined by immunohistochemistry for bcl-2, p53 and VEGF proteins. The vascularity was measured by the average microvascular density (MVD) of the CD34-positive vessels. Clinical information was obtained through the computerized retrospective database from the tumor registry.
RESULTS
Immunoreactivity for bcl-2 was detected in 17% (25/147), p53 in 72% (106/147) and VEGF in 75% (110/147) of the tumors. An inverse association was found between bcl-2 expression and VEGF expression (p=0.012). There was a significant correlation between the bcl-2 expression and the MVD (p=0.009), and also between the p53 expression and the MVD (p=0.045). The mean survival time was associated with the patients' age (p=0.032), the T status (p=0.038), the tumor stage (p=0.009), and expressions of bcl-2 (p=0.016) and VEGF (p=0.039). On multivariate analysis, only the tumor stage and VEGF expression maintained their prognostic influence.
CONCLUSIONS
Our data suggest that bcl-2 and p53 alterations are involved in the angiogenesis of NSCLC, and are either dependent on or independent of VEGF. It is further noteworthy that the tumor stage and VEGF expression may be useful in predicting patients' survival.

Case Report

Fine Needle Aspiration Cytology of Ameloblastoma: A Case Report.: Hee Jeong Lee, Eun Sun Jung, Byung Kee Kim, Chang Suk Kang; J Pathol Transl Med. 2002;13(2):70-73.

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Abstract PDF: Utilization of fine needle aspiration cytology(FNAC) in the diagnosis of odontogenic tumors seems to have little attention. Ameloblastoma is the most common epithelial odontogenic tumor. However, the cytologic findings of ameloblastoma are described recently. We report a case of ameloblastoma diagnosed by FNAC. The aspirated blood-tinged mucoid fluid from maxillary mass showed a few clusters of tumor cells with distinct two-cell population: basaloid cells with palisading arrangement and squamous cells with more abundant and eosinophilic cytoplasm. Nuclear atypism, pleomorphism or mitosis were absent. A few keratinized bodies in the tumor cell clusters and the third component, stellate cells were also characteristic.

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