Journal of Pathology and Translational Medicine

Case Study

Adrenal hemangioblastoma: Joo-Yeon Koo, Kyung-Hwa Lee, Joon Hyuk Choi, Ho Seok Chung, Chan Choi; J Pathol Transl Med. 2022;56(3):161-166. Published online February 28, 2022; DOI: https://doi.org/10.4132/jptm.2021.12.28

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Abstract PDF: Hemangioblastoma (HB) is a rare benign tumor that most commonly occurs in the cerebellum. HB is composed of neoplastic stromal cells and abundant small vessels. However, the exact origin of stromal cells is controversial. Extraneural HBs have been reported in a small series, and peripheral HBs arising in the adrenal gland are extremely rare. Herein, we report a case of sporadic adrenal HB in a 54-year-old woman. The tumor was a well-circumscribed, yellow mass measuring 4.2 cm in diameter. Histologically, the tumor was composed of small blood vessels and vacuolated stromal cells with clear cytoplasm. On immunohistochemical stain, the stromal cells were positive for S-100 protein, neuron-specific enolase, and synaptophysin. The tumor did not reveal mutation of VHL alleles. We herein present a case of HB of the adrenal gland and review of the literature.

Original Article

Yes-Associated Protein Expression Is Correlated to the Differentiation of Prostate Adenocarcinoma: Myung-Giun Noh, Sung Sun Kim, Eu Chang Hwang, Dong Deuk Kwon, Chan Choi; J Pathol Transl Med. 2017;51(4):365-373. Published online June 9, 2017; DOI: https://doi.org/10.4132/jptm.2017.05.04

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Background
Yes-associated protein (YAP) in the Hippo signaling pathway is a growth control pathway that regulates cell proliferation and stem cell functions. Abnormal regulation of YAP was reported in human cancers including liver, lung, breast, skin, colon, and ovarian cancer. However, the function of YAP is not known in prostate adenocarcinoma. The purpose of this study was to investigate the role of YAP in tumorigenesis, differentiation, and prognosis of prostate adenocarcinoma.
Methods
The nuclear and cytoplasmic expression of YAP was examined in 188 cases of prostate adenocarcinoma using immunohistochemistry. YAP expression levels were evaluated in the nucleus and cytoplasm of the prostate adenocarcinoma and the adjacent normal prostate tissue. The presence of immunopositive tumor cells was evaluated and interpreted in comparison with the patients’ clinicopathologic data.
Results
YAP expression levels were not significantly different between normal epithelial cells and prostate adenocarcinoma. However, YAP expression level was significantly higher in carcinomas with a high Gleason grades (8–10) than in carcinomas with a low Gleason grades (6–7) (p < .01). There was no statistical correlation between YAP expression and stage, age, prostate-specific antigen level, and tumor volume. Biochemical recurrence (BCR)–free survival was significantly lower in patients with high YAP expressing cancers (p = .02). However high YAP expression was not an independent prognostic factor for BCR in the Cox proportional hazards model.
Conclusions
The results suggested that YAP is not associated with prostate adenocarcinoma development, but it may be associated with the differentiation of the adenocarcinoma. YAP was not associated with BCR.

Citations

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Connecting Hippo Pathway and Cytoophidia in Drosophila Posterior Follicle Cells
Rui-Yu Weng, Lei Zhang, Ji-Long Liu
International Journal of Molecular Sciences.2024; 25(3): 1453. CrossRef
NEK1-Mediated Phosphorylation of YAP1 Is Key to Prostate Cancer Progression
Ishita Ghosh, Md Imtiaz Khalil, Rusella Mirza, Judy King, Damilola Olatunde, Arrigo De Benedetti
Biomedicines.2023; 11(3): 734. CrossRef
Epigenetic Inheritance From Normal Origin Cells Can Determine the Aggressive Biology of Tumor-Initiating Cells and Tumor Heterogeneity
Jiliang Feng, Dawei Zhao, Fudong Lv, Zhongyu Yuan
Cancer Control.2022; 29: 107327482210781. CrossRef
A Yes-Associated Protein (YAP) and Insulin-Like Growth Factor 1 Receptor (IGF-1R) Signaling Loop Is Involved in Sorafenib Resistance in Hepatocellular Carcinoma
Mai-Huong T. Ngo, Sue-Wei Peng, Yung-Che Kuo, Chun-Yen Lin, Ming-Heng Wu, Chia-Hsien Chuang, Cheng-Xiang Kao, Han-Yin Jeng, Gee-Way Lin, Thai-Yen Ling, Te-Sheng Chang, Yen-Hua Huang
Cancers.2021; 13(15): 3812. CrossRef
Evidence for discrete modes of YAP1 signaling via mRNA splice isoforms in development and diseases
Jan Vrbský, Vladimir Vinarský, Ana Rubina Perestrelo, Jorge Oliver De La Cruz, Fabiana Martino, Antonio Pompeiano, Valerio Izzi, Ota Hlinomaz, Vladimir Rotrekl, Marius Sudol, Stefania Pagliari, Giancarlo Forte
Genomics.2021; 113(3): 1349. CrossRef
Up regulation of the Hippo signalling effector YAP1 is linked to early biochemical recurrence in prostate cancers
Andreas Marx, Aljoscha Schumann, Doris Höflmayer, Elena Bady, Claudia Hube-Magg, Katharina Möller, Maria Christina Tsourlakis, Stefan Steurer, Franziska Büscheck, Till Eichenauer, Till S. Clauditz, Markus Graefen, Ronald Simon, Guido Sauter, Jakob R. Izbi
Scientific Reports.2020;[Epub] CrossRef
NEK1 Phosphorylation of YAP Promotes Its Stabilization and Transcriptional Output
Md Imtiaz Khalil, Ishita Ghosh, Vibha Singh, Jing Chen, Haining Zhu, Arrigo De Benedetti
Cancers.2020; 12(12): 3666. CrossRef

Brief Case Reports

Hybrid Granular Cell Tumor/Perineurioma: Sung Sun Kim, Yoo Duk Choi, Jae Hyuk Lee, Chan Choi, Chang Soo Park; Korean J Pathol. 2014;48(6):409-412. Published online December 31, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.6.409

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Anders Meyer, Steven D. Billings
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A Rare Perineurioma/Granular Cell Tumor Hybrid Peripheral Nerve Sheath Tumor
Koorosh Haghayeghi, Gladys Telang, Sonja Chen, Jack Bevivino, Shamlal Mangray, Yiang Hui, Leslie Robinson-Bostom
The American Journal of Dermatopathology.2020; 42(10): 762. CrossRef

Cytokeratin-Positive Gastrointestinal Stromal Tumor of Biphasic Morphology: A Case Report: Sung Sun Kim, Yoo Duk Choi, Jae Hyuk Lee, Chan Choi; Korean J Pathol. 2014;48(5):375-378. Published online October 27, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.5.375

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CYTOKERATINS: NOT AN EPITHELIAL ENTITY ANYMORE?
Geetpriya Kaur, Devicharan Shetty, Seema Sikka, Aparna Pathak
INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH.2022; : 15. CrossRef
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Intravascular Papillary Endothelial Hyperplasia of the Chest Wall Misdiagnosed as a Malignancy on Fine Needle Aspiration: Yoo-Duk Choi, Young Kim, Sung-Sun Kim, Jo-Heon Kim, Jong-Hee Nam, Chan Choi, Chang-Soo Park; Korean J Pathol. 2013;47(5):499-501. Published online October 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.5.499

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Intravascular papillary endothelial hyperplasia in the lungs of a wild Korean raccoon dog
Warisraporn Tangchang, Su-Young Park, Eun-Hye Jung, Dong-Min Lee, Bit-Na Choi, Hyo-Jung Kwon, Hwa-Young Son
Journal of Veterinary Diagnostic Investigation.2024; 36(1): 112. CrossRef
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Francesco Godizzi, Mario Caniatti, Elisabetta Treggiari, Giorgio Romanelli, Ugo Bonfanti, Gabriele Ghisleni, Paola Roccabianca
Journal of Veterinary Diagnostic Investigation.2022; 34(3): 552. CrossRef
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Original Articles

Diagnostic Utility of a Clonality Test for Lymphoproliferative Diseases in Koreans Using the BIOMED-2 PCR Assay: Young Kim, Yoo Duk Choi, Chan Choi, Jong-Hee Nam; Korean J Pathol. 2013;47(5):458-465. Published online October 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.5.458

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Abstract PDF

Background

A clonality test for immunoglobulin (IG) and T cell receptor (TCR) is a useful adjunctive method for the diagnosis of lymphoproliferative diseases (LPDs). Recently, the BIOMED-2 multiplex polymerase chain reaction (PCR) assay has been established as a standard method for assessing the clonality of LPDs. We tested clonality in LPDs in Koreans using the BIOMED-2 multiplex PCR and compared the results with those obtained in European, Taiwanese, and Thai participants. We also evaluated the usefulness of the test as an ancillary method for diagnosing LPDs.

Methods

Two hundred and nineteen specimens embedded in paraffin, including 78 B cell lymphomas, 80 T cell lymphomas and 61 cases of reactive lymphadenitis, were used for the clonality test.

Results

Mature B cell malignancies showed 95.7% clonality for IG, 2.9% co-existing clonality, and 4.3% polyclonality. Mature T cell malignancies exhibited 83.8% clonality for TCR, 8.1% co-existing clonality, and 16.2% polyclonality. Reactive lymphadenitis showed 93.4% polyclonality for IG and TCR. The majority of our results were similar to those obtained in Europeans. However, the clonality for IGK of B cell malignancies and TCRG of T cell malignancies was lower in Koreans than Europeans.

Conclusions

The BIOMED-2 multiplex PCR assay was a useful adjunctive method for diagnosing LPDs.

Citations

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Experiencia en el uso de protocolos Biomed-2 para el estudio de reordenamientos de TCR e inmunoglobulinas en proliferaciones linfoides en el Instituto Nacional de Cancerología, Colombia
Nicolás Villamizar-Rivera, Natalia Olaya
Biomédica.2022; 42(Sp. 1): 64. CrossRef
Enhancing diagnosis of T-cell lymphoma using non-recombined T-cell receptor sequences
Yi-Lin Chen, Chung-Liang Ho, Chen-Yan Hung, Wan-Li Chen, Chen Chang, Yi-Hsin Hou, Jian-Rong Chen, Pin-Jun Chen, Nan-Haw Chow, Wenya Huang, Ya-Ting Hsu, Tsai-Yun Chen, Tsunglin Liu
Frontiers in Oncology.2022;[Epub] CrossRef
The utility and limitations of B- and T-cell gene rearrangement studies in evaluating lymphoproliferative disorders
Hadrian Mendoza, Christopher A. Tormey, Henry M. Rinder, John G. Howe, Alexa J. Siddon
Pathology.2021; 53(2): 157. CrossRef
Combined detection of lymphocyte clonality and MALT1 translocations in bronchoalveolar lavage fluid for diagnosing pulmonary lymphomas
Takashi Kido, Hiroshi Ishimoto, Hiroshi Ishii, Kanako Hara, Mutsumi Ozasa, Hiroki Kawabata, Toshinori Kawanami, Yu Suzuki, Hiroki Yoshikawa, Atsuko Hara, Noriho Sakamoto, Nobuhiro Matsumoto, Chiharu Yoshii, Junya Fukuoka, Masaki Fujita, Masamitsu Nakazato
Scientific Reports.2021;[Epub] CrossRef
Differentiation of lymphocytic‐plasmacytic enteropathy and small cell lymphoma in cats using histology‐guided mass spectrometry
Sina Marsilio, Shelley J. Newman, James Scot Estep, Paula R. Giaretta, Jonathan A. Lidbury, Emma Warry, Andi Flory, Paul S. Morley, Katy Smoot, Erin H. Seeley, Matthew J. Powell, Jan S. Suchodolski, Jörg M. Steiner
Journal of Veterinary Internal Medicine.2020; 34(2): 669. CrossRef
T-Cell Receptor Rearrangements Determined Using Fragment Analysis in Patients With T-Acute Lymphoblastic Leukemia
Hyerim Kim, In-Suk Kim, Chulhun L. Chang, Sun-Young Kong, Young Tak Lim, Seom Gim Kong, Eun Hae Cho, Eun-Yup Lee, Ho-Jin Shin, Hyeon Jin Park, Hyeon-Seok Eom, Hyewon Lee
Annals of Laboratory Medicine.2019; 39(2): 125. CrossRef
Monitoring immunoglobulin heavy chain and T‑cell receptor gene rearrangement in cfDNA as minimal residual disease detection for patients with acute myeloid leukemia
Ling Zhong, Jiao Chen, Xiaobing Huang, Yanxing Li, Tao Jiang
Oncology Letters.2018;[Epub] CrossRef
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
Improved clonality detection in B‐cell lymphoma using a semi‐nested modification of the BIOMED‐2 PCR assay for IGH rearrangement: A paraffin‐embedded tissue study
Yuma Sakamoto, Ayako Masaki, Satsuki Aoyama, Shusen Han, Kosuke Saida, Kana Fujii, Hisashi Takino, Takayuki Murase, Shinsuke Iida, Hiroshi Inagaki
Pathology International.2017; 67(9): 453. CrossRef
The prognostic significance of monoclonal immunoglobulin gene rearrangement in conjunction with histologic B‐cell aggregates in the bone marrow of patients with diffuse large B‐cell lymphoma
Yoon Ah Cho, Woo Ick Yang, Jae‐Woo Song, Yoo Hong Min, Sun Och Yoon
Cancer Medicine.2016; 5(6): 1066. CrossRef
Nasal-type NK/T-cell lymphomas are more frequently T rather than NK lineage based on T-cell receptor gene, RNA, and protein studies: lineage does not predict clinical behavior
Mineui Hong, Taehee Lee, So Young Kang, Suk-Jin Kim, Wonseog Kim, Young-Hyeh Ko
Modern Pathology.2016; 29(5): 430. CrossRef
Long-term Tumor-free Survival With Untreated Primary Diffuse Large B-cell Lymphoma of the Tonsil
Xiaojing Zhang, Yuanyuan Zheng, Jianlan Xie, Jun Zhu, Yuqin Song, Xiaojing Teng, Wei Liu, Yi Ding, Yuhua Huang, Xiaoge Zhou
American Journal of Surgical Pathology.2015; 39(11): 1493. CrossRef
Evaluation diagnostic usefulness of immunoglobulin light chains (Igκ, Igλ) and incomplete IGH D-J clonal gene rearrangements in patients with B-cell non-Hodgkin lymphomas using BIOMED-2 protocol
S. Ghorbian, I. Jahanzad, G. R. Javadi, E. Sakhinia
Clinical and Translational Oncology.2014; 16(11): 1006. CrossRef

Distinction of Pulmonary Large Cell Neuroendocrine Carcinoma from Small Cell Lung Carcinoma Using a Panel of Bcl-2, p63, and 34betaE12.: Jun Zhe Li, Chan Choi, Yoo Duk Choi, Kook Joo Na; Korean J Pathol. 2011;45(2):170-174.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.2.170

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Abstract PDF: BACKGROUND
Making the distinction between large cell neuroendocrine carcinoma (LCNEC) and small cell lung carcinoma (SCLC) is difficult in some samples of biopsy tissues, but we have to separate LCNEC from SCLC because the two types of cancer may need different therapy and they have different prognostic implications. Thus far, there are no specific immunohistochemical markers that allow distinguishing these two kinds of tumors.
METHODS
We performed an immunohistochemical analysis to study the expressions of p63, Bcl-2, and 34betaE12 and to investigate whether these 3 molecules have correlations in LCNEC and SCLC. We also evaluated the expression of the neuroendocrine markers chromogranin, synaptophysin and CD56.
RESULTS
A statistical analysis was performed for p63, Bcl-2, and 34betaE12 in separate and combined panels. According to the combinations of p63, Bcl-2, and 34betaE12, there were frequent expressions of p63-/Bcl-2+ or Bcl-2+/34betaE12- in the SCLC, and there was a superior proportion of them in the SCLC rather than that in the LCNEC. The p63-/Bcl-2+ and Bcl-2+/34betaE12- antibody combinations showed higher specificities compared to any single antibody for diagnosing SCLC.
CONCLUSIONS
Bcl-2 and selective p63 or 34betaE12 made up a most useful panel of markers for making the differential diagnosis of LCNEC and SCLC.

Utility of Promoter Hypermethylation for Differentiating Malignant and Benign Effusions in Liquid-Based Cytology Specimens.: Ga Eon Kim, Jo Heon Kim, Yeong Hui Kim, Chan Choi, Ji Shin Lee; Korean J Pathol. 2010;44(3):315-321.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.3.315

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Abstract PDF

BACKGROUND
Making the cytologic differentiation between benign and malignant effusions can be difficult. Because promoter hypermethylation of tumor suppressor genes is a frequent epigenetic event in many human cancers, it could serve as a marker for the diagnosis of cancer. The aim of this study was to investigate the feasibility of detecting promoter hypermethylation as a diagnostic tool with using liquid-based cytology samples for differentiating between malignant and benign effusions.
METHODS
A multiplex, nested, methylation-specific polymerase chain reaction analysis was used to examine promoter methylation of 4 genes (retinoic acid receptor-beta, [RAR-beta], adenomatous polyposis coli [APC], Twist and high in normal-1 [HIN-1]) in malignant (n = 85) and benign (n = 31) liquid-based cytology samples.
RESULTS
The frequencies of hypermethylation of RAR-beta, APC, Twist and HIN-1 were significantly higher in the malignant effusions than in the benign effusions (p < 0.001 for each). On the receiver-operating characteristic analysis, the area under the curve (AUC) for APC was the greatest. The AUC for the best two-gene combination (APC/HIN-1) was not statistically different from the AUC for the best individual tumor suppressor gene (APC).
CONCLUSIONS
This study suggests that promoter methylation analysis on residual liquid-based effusion samples may be a feasible approach to detect malignant effusions, and that APC is the best marker for differentiating between malignant and benign effusions.

Citations

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A comparative analysis of conventional cytopreparatory and liquid based cytological techniques (Sure Path) in evaluation of serous effusion fluids
Hrishikesh Dadhich, Pampa Ch Toi, Neelaiah Siddaraju, Kalidas Sevvanthi
Diagnostic Cytopathology.2016; 44(11): 874. CrossRef

DNA Methylation Profiles of MGMT, DAPK1, hMLH1, CDH1, SHP1, and HIC1 in B-Cell Lymphomas.: Sung Sun Kim, Young Hyo Choi, Chang Woo Han, Yoo Duk Choi, Youngkyu Park, Je Jung Lee, Hyeoung Joon Kim, Il Kwon Lee, Ji Shin Lee, Sang Woo Juhng, Chan Choi; Korean J Pathol. 2009;43(5):420-427.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.5.420

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Abstract PDF

BACKGROUND
This study was designed to examine the prevalence of aberrant promoter methylation in a selected panel of genes potentially involved in lymphoid tumors.
METHODS
The promoter hypermethylation status of MGMT, DAPK1, hMLH1, CDH1, SHP1, and HIC1 was measured by methylation-specific PCR for 82 cases of B-cell lymphoma. Immunohistochemical staining using MGMT and SHP1 antibodies was conducted on 43 out of 82 cases.
RESULTS
The number of MGMT aberrant methylations was lower in diffuse large B-cell lymphoma (DLBCL) than in other malignant lymphomas. The methylation of DAPK1 was frequently detected in follicular lymphoma (FL), marginal zone B-cell lymphoma (MZL) and DLBCL. With one exception, methylation of hMLH1 was not observed in B-cell lymphomas. The methylation frequency of CDH1, and HIC1 was similar in B-cell lymphomas. However, the methylation of SHP1 gene was more frequently observed in cases of FL, DLBCL, and MZL than in chronic lymphocytic lymphoma. MGMT and SHP1 promoter methylation were inversely correlated with the protein expression observed upon immunohistochemical staining.
CONCLUSIONS
Aberrant promoter methylation of multiple genes occurs with variable frequency throughout the B-cell lymphomas, and methylation of hMLH1 is rarely observed in B-cell lymphomas.

Citations

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Plasma DNA methylation of p16 and shp1 in patients with B cell non-Hodgkin lymphoma
Kai Ding, Xiaoshuang Chen, Yihao Wang, Hui Liu, Wenjing Song, Lijuan Li, Guojin Wang, Jia Song, Zonghong Shao, Rong Fu
International Journal of Clinical Oncology.2017; 22(3): 585. CrossRef
Hypermethylation of p15 Gene in Diffuse – Large B‐Cell Lymphoma: Association with Less Aggressiveness of the Disease
Milena Krajnović, Maja Peruničić Jovanović, Biljana Mihaljević, Boško Anđelić, Olivera Tarabar, Slavica Knežević‐Ušaj, Koviljka Krtolica
Clinical and Translational Science.2014; 7(5): 384. CrossRef

Case Report

Cytologic Diagnosis of Malignant Pleural Effusion in Multiple Myeloma: Two Case Reports.: Yoo Duk Choi, Sung Sun Kim, Chang Woo Han, Ji Shin Lee, Jong Hee Nam, Sang Woo Juhng, Chan Choi; Korean J Pathol. 2009;43(4):382-385.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.4.382

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Abstract PDF

Malignant pleural effusion in multiple myeloma (MM) is extremely rare and is associated with poor prognosis. We experienced two cases of MM IgA type with malignant pleural effusion. The diagnoses were based on characteristic cytology and CD138 immunocytochemistry. The patients received several cycles of combination chemotherapy, since symptoms were more aggressive with an uncontrolled pleural effusion. We review the clinical features of these cases and literature concerning myelomatous pleural effusion.

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V. Riveiro, L. Ferreiro, M.E. Toubes, A. Lama, J.M. Álvarez-Dobaño, L. Valdés
Revista Clínica Española.2018; 218(2): 89. CrossRef
Characteristics of patients with myelomatous pleural effusion. A systematic review
V. Riveiro, L. Ferreiro, M.E. Toubes, A. Lama, J.M. Álvarez-Dobaño, L. Valdés
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Original Articles

Prevalence and Genotype Distribution of Cervical Human Papillomavirus DNA in Korean Women: A Multicenter Study.: Sung Ran Hong, In Sun Kim, Dong Won Kim, Mi Jin Kim, Ae Ree Kim, Young Ok Kim, Hye Sun Kim, Seo Hee Rha, Gyeong Sin Park, Yong Koo Park, Yong Wook Park, Ho Sung Park, Kwang Sun Suh, Jin Hee Sohn, Mi Kyung Shin, Hoon Kyu Oh, Ki Jung Yun, Hye Kyoung Yoon, Shi Nae Lee, Ah Won Lee, Hyo Jin Lee, Hyun Yee Cho, Chan Choi, Woon Won Jung; Korean J Pathol. 2009;43(4):342-350.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.4.342

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Abstract PDF

Background
DNA prevalence and type distribution of human papillomavirus (HPV) varies geographically. We investigated HPV prevalence and type distribution in Korean women using the MyHPV DNA chip testing. Methods: A total of 2,368 women from five regions of the country underwent Pap smear examination and MyHPV chip testing. Results: Overall HPV positivity was 15.8% and 78.4% in women with normal and abnormal cytology, respectively. High-risk HPV infection was strongly correlated with cytological atypia. In women with abnormal cytology, the five most common HPV types were 16, 58, 18, 52, and 56/53, and HPV16 was significantly the most common type in most geographical regions. After HPV16, HPV58, and 52 were the next most frequently detected types. Women with normal cytology, in contrast, showed heterogeneity in HPV type distribution. High-grade intraepithelial lesions infected with HPV16, 18, 31 or 45 are more likely to progress to carcinoma. Conclusions: The HPV chip test can provide useful data regarding HPV positivity and type. The most common HPV type in Korean women with abnormal cytology is HPV16, with HPV58 and 52 being frequently present. Our data may have important implications for vaccination programs and the development of cervical screening.

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Comparison of the Cobas 4800 HPV and HPV 9G DNA Chip Tests for Detection of High-Risk Human Papillomavirus in Cervical Specimens of Women with Consecutive Positive HPV Tests But Negative Pap Smears
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Uncommon and Rare Human Papillomavirus Genotypes Relating to Cervical Carcinomas
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Evaluation of Human Papillomavirus Genotyping from Formalin-fixed Paraffin-embedded Specimens in Cervical Cancers
Hyunwoo Jin
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Eunsim Shin, Heojin Bae, Wan-Keun Song, Sun-Kyung Jung, Yoo-Sung Hwang
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Significance of HPV-58 Infection in Women Who Are HPV-Positive, Cytology-Negative and Living in a Country with a High Prevalence of HPV-58 Infection
Joon Seon Song, Eun Ju Kim, Jene Choi, Gyungyub Gong, Chang Ohk Sung, Robert D. Burk
PLoS ONE.2013; 8(3): e58678. CrossRef
REBA HPV‐ID® for efficient genotyping of human papillomavirus in clinical samples from Korean patients
Sunghyun Kim, Dongsup Lee, Sangjung Park, Tae Ue Kim, Bo‐Young Jeon, Kwang Hwa Park, Hyeyoung Lee
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Dynamin 2 expression as a biomarker in grading of cervical intraepithelial neoplasia
Yoo-Young Lee, Sang Yong Song, In-Gu Do, Tae-Joong Kim, Byoung-Gie Kim, Jeong-Won Lee, Duk-Soo Bae
European Journal of Obstetrics & Gynecology and Reproductive Biology.2012; 164(2): 180. CrossRef
Cytomorphologic Features According to HPV DNA Type in Histologically Proven Cases of the Uterine Cervix
In Ho Choi, So-Young Jin, Dong Wha Lee, Dong Won Kim, Yoon Mi Jeen
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The Diagnostic Accuracy of Fine Needle Aspiration Cytology and the Diagnostic Usefulness of Galectin-3 Immunostaining for the Follicular Variant of Papillary Thyroid Carcinoma.: Chan Choi, Min Cheol Lee, Kyu Hyuk Cho; Korean J Cytopathol. 2008;19(2):160-163.; DOI: https://doi.org/10.3338/kjc.2008.19.2.160

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Abstract PDF: The cytologic diagnosis of the follicular variant of papillary thyroid carcinoma (FVPTC) has become one of the common causes of false negative diagnoses when performing fine needle aspiration cytology (FNAC) of the thyroid gland. We retrospectively reviewed all the aspirates for which a diagnosis of FVPTC had been made based on the surgically excised specimens, regardless of the cytologic diagnosis. 145 FNACs was performed in 135 patients. The cytologic diagnoses were categorized as 2 unsatisfactory specimens (1.4%), 16 benign (11.0%), 49 atypical (33.8%) and 78 malignant lesions (53.8%). The tumor cells consistently showed significant nuclear overlapping, irregular nuclei and fine chromatin in all cases; however, nuclear grooves and inclusions were scarce. Galectin-3 immunostaining was performed on the cell blocks of 65 cases and this was positive for 45 cases (69.2%). The results of our study demonstrate that the determination of minimal cytologic criteria is needed to raise the sensitivity of detecting FVPTC by FNAC, and galectin-3 immunostaining is useful to make decisions on the surgical treatment of cytologically atypical thyroid nodules.

Application of Gene Rearrangement Analysis for Diagnosis of Malignant Lymphoma.: Kyung Soo Kim, Chan Choi; Korean J Pathol. 1995;29(4):415-422.

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Abstract PDF: To evaluate the utility of gene rearrangement analysis, eight cases of malignant lymphoma, one case of Hodgkin's disease, two cases of angioiminunoblastic lymphadenopathy (AILD) and two cases of non-specific lymphadenitis were studied by immunohistochemical and genetic analysis. Southern blot analysis was perfon-ned by a using vacuum transfer system and a biotin labelled probe. This method was faster, safer, and more convenient than conventional methods. Gene rearrangement study showed rearranged novel bands in five of six cases of B cell lymphoma, in all cases of T cell lymphoma, and in all cases of AILD. No rearrangement of the B cell receptor(BCR) or of the T cell receptor(TCR) was seen in Hodgkin's disease or in nonspecific lymphadenitis. These results suggest that gene rearrangement analysis of BCR and TCR is a recommended method for the diagnosis of clonality in lymphoproliferative disorders. It would allow pathologists to differentiate lymphoma from polyclonal lymphoid proliferation and to provide information for cell lineage.

Case Reports

A Case Report of Renal Cell Carcinoma in a Polycystic Kidney: A case report.: Kyoung Chan Choi, Joon Hyuk Choi, Won Hee Choi; Korean J Pathol. 1996;30(1):57-60.

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Abstract PDF: A forty-nine-year-old woman with polycystic disease had a right nephrectomy for what was preoperatively thought to be a polycystic disease, but at surgery turned out to be a tumor based on frozen section. Microscopic examination revealed papillary type, renal cell carcinoma with classical features of adult polycystic kidneys. Radiologic findings revealed multiple cysts in the liver. The clinical recognition of a carcinoma developing in polycystic kidneys is often difficult because of the presence of preexisting large renal masses and occasional hematuria. Renal cell carcinoma should be thought of when confronted with abdominal pain or back pain, severe hematuria, sudden dysuria or a new renal mass occurring in a patient with polycystic kidneys.

Serous Cystadenoma of the Pancreas: A case report.: Young Kyoung Bae, Woo Young Jang, Kyoung Chan Choi, Joon Hyuk Choi, Won Hee Choi; Korean J Pathol. 1996;30(1):68-71.

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Abstract PDF: Serous cystadenoma of the pancreas, also known as microcystic adenoma or glycogen-rich cystadenoma, is an unusually benign tumor. It is usually large and composed microscopically of many small cysts lined by small, cuboidal or flattened cells containing abundant glycogen. It has been suggested that serous cystadenoma probably arise from the ductular cells or centroacinar cells. Herein, we report on a case of serous cystadenoma of the pancreas in a 55-year-old female. The tumor, measuring 13.5x11.5x10.0 cm, was located in the head of the pancreas and the cut surface revealed a sponge-like appearance due to innumerable tiny cysts containing clear serous fluid. Microscopic analysis showed cystic spaces lined by cuboidal cells with intracytoplasmic glycogen.

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