Journal of Pathology and Translational Medicine

Review

Standardized Pathology Report for Colorectal Cancer, 2nd Edition: Baek-hui Kim, Joon Mee Kim, Gyeong Hoon Kang, Hee Jin Chang, Dong Wook Kang, Jung Ho Kim, Jeong Mo Bae, An Na Seo, Ho Sung Park, Yun Kyung Kang, Kyung-Hwa Lee, Mee Yon Cho, In-Gu Do, Hye Seung Lee, Hee Kyung Chang, Do Youn Park, Hyo Jeong Kang, Jin Hee Sohn, Mee Soo Chang, Eun Sun Jung, So-Young Jin, Eunsil Yu, Hye Seung Han, Youn Wha Kim; J Pathol Transl Med. 2020;54(1):1-19. Published online November 13, 2019; DOI: https://doi.org/10.4132/jptm.2019.09.28

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The first edition of the ‘Standardized Pathology Report for Colorectal Cancer,’ which was developed by the Gastrointestinal Pathology Study Group (GIP) of the Korean Society of Pathologists, was published 13 years ago. Meanwhile, there have been many changes in the pathologic diagnosis of colorectal cancer (CRC), pathologic findings included in the pathology report, and immunohistochemical and molecular pathology required for the diagnosis and treatment of colorectal cancer. In order to reflect these changes, we (GIP) decided to make the second edition of the report. The purpose of this standardized pathology report is to provide a practical protocol for Korean pathologists, which could help diagnose and treat CRC patients. This report consists of “standard data elements” and “conditional data elements.” Basic pathologic findings and parts necessary for prognostication of CRC patients are classified as “standard data elements,” while other prognostic factors and factors related to adjuvant therapy are classified as “conditional data elements” so that each institution could select the contents according to the characteristics of the institution. The Korean version is also provided separately so that Korean pathologists can easily understand and use this report. We hope that this report will be helpful in the daily practice of CRC diagnosis.

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Original Article

IDH Mutation Analysis in Ewing Sarcoma Family Tumors: Ki Yong Na, Byeong-Joo Noh, Ji-Youn Sung, Youn Wha Kim, Eduardo Santini Araujo, Yong-Koo Park; J Pathol Transl Med. 2015;49(3):257-261. Published online May 15, 2015; DOI: https://doi.org/10.4132/jptm.2015.04.14

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Abstract PDF

Background
Isocitrate dehydrogenase (IDH) catalyzes the oxidative decarboxylation of isocitrate to yield α-ketoglutarate (α-KG) with production of reduced nicotinamide adenine dinucleotide (NADH). Dysfunctional IDH leads to reduced production of α-KG and NADH and increased production of 2-hydroxyglutarate, an oncometabolite. This results in increased oxidative damage and stabilization of hypoxia-inducible factor α, causing cells to be prone to tumorigenesis. Methods: This study investigated IDH mutations in 61 Ewing sarcoma family tumors (ESFTs), using a pentose nucleic acid clamping method and direct sequencing. Results: We identified four cases of ESFTs harboring IDH mutations. The number of IDH1 and IDH2 mutations was equal and the subtype of IDH mutations was variable. Clinicopathologic analysis according to IDH mutation status did not reveal significant results. Conclusions: This study is the first to report IDH mutations in ESFTs. The results indicate that ESFTs can harbor IDH mutations in previously known hot-spot regions, although their incidence is rare. Further validation with a larger case-based study would establish more reliable and significant data on prevalence rate and the biological significance of IDH mutations in ESFTs.

Citations

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Ewing’s Sarcoma Presenting in the Paranasal Sinus – A Case Report
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Isocitrate dehydrogenase gene variants in cancer and their clinical significance
Thomas Cadoux-Hudson, Christopher J. Schofield, James S.O. McCullagh
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Peng Gao, Nicole A. Seebacher, Francis Hornicek, Zheng Guo, Zhenfeng Duan
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Clinicopathologic Features of the Non-CNS Primary Ewing Sarcoma Family of Tumors in the Head and Neck Region
Chang Gok Woo, Bora Lee, Joon Seon Song, Kyung-Ja Cho
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EWS/FLI is a Master Regulator of Metabolic Reprogramming in Ewing Sarcoma
Jason M. Tanner, Claire Bensard, Peng Wei, Nathan M. Krah, John C. Schell, Jamie Gardiner, Joshua Schiffman, Stephen L. Lessnick, Jared Rutter
Molecular Cancer Research.2017; 15(11): 1517. CrossRef

Case Study

A Giant Peritoneal Loose Body: Hyun-Soo Kim, Ji-Youn Sung, Won Seo Park, Youn Wha Kim; Korean J Pathol. 2013;47(4):378-382. Published online August 26, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.4.378

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Abstract PDF

Peritoneal loose bodies (PLBs) are usually discovered incidentally during laparotomy or autopsy. A few cases of giant PLBs presenting with various symptoms have been reported in the literature. Here, we describe a case of a giant PLB incidentally found in the pelvic cavity of a 50-year-old man. Computed tomography revealed a free ovoid mass in the pelvic cavity that consisted of central dense, heterogeneous calcifications and peripheral soft tissue. The mass was an egg-shaped, hard, glistening concretion measuring 7.5×7.0×6.8 cm and weighing 160 g. This concretion consisted of central necrotic fatty tissue surrounded by concentrically laminated, acellular, fibrous material. Small PLBs usually do not require any specific treatment. However, if PLBs cause alimentary or urinary symptoms due to their large size, surgical removal may be recommended. It is essential for clinicians to be aware of this entity and its characteristic features to establish the correct diagnosis.

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Abdudin Heru Mehammed, Natnael Alemu Bezabih, Muluken Yifru Gebresilassie, Yohanna Aregawi Hailu, Mengistu Yismie Semahegn, Misganaw Yigletie Damtie
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Mohd Ilyas, Mohd Yaqoob Wani, Musaib Ahmad Dar, Feroze A. Shaheen
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Original Article

Proposal for a Standardized Pathology Report of Gastroenteropancreatic Neuroendocrine Tumors: Prognostic Significance of Pathological Parameters: Mee-Yon Cho, Jin Hee Sohn, So Young Jin, Hyunki Kim, Eun Sun Jung, Mi-Jung Kim, Kyoung-Mee Kim, Woo Ho Kim, Joon Mee Kim, Yun Kyung Kang, Joon Hyuk Choi, Dae Young Kang, Youn Wha Kim, Eun Hee Choi; Korean J Pathol. 2013;47(3):227-237. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.227

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Abstract PDF

Background

There is confusion in the diagnosis and biological behaviors of gastroenteropancreatic neuroendocrine tumors (GEP-NETs), because of independently proposed nomenclatures and classifications. A standardized form of pathology report is required for the proper management of patients.

Methods

We discussed the proper pathological evaluation of GEP-NET at the consensus conference of the subcommittee meeting for the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists. We then verified the prognostic significance of pathological parameters from our previous nationwide collection of pathological data from 28 hospitals in Korea to determine the essential data set for a pathology report.

Results

Histological classification, grading (mitosis and/or Ki-67 labeling index), T staging (extent, size), lymph node metastasis, and lymphovascular and perineural invasion were significant prognostic factors and essential for the pathology report of GEP-NET, while immunostaining such as synaptophysin and chromogranin may be optional. Furthermore, the staging system, either that of the 2010 American Joint Cancer Committee (AJCC) or the European Neuroendocrine Tumor Society (ENETS), should be specified, especially for pancreatic neuroendocrine neoplasms.

Conclusions

A standardized pathology report is crucial for the proper management and prediction of prognosis of patients with GEP-NET.

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Primary low‐grade neuroendocrine carcinoma of the skin: An exceedingly rare entity
Tiffany Y. Chen, Annie O. Morrison, Joe Susa, Clay J. Cockerell
Journal of Cutaneous Pathology.2017; 44(11): 978. CrossRef
Prognostic Validity of the American Joint Committee on Cancer and the European Neuroendocrine Tumors Staging Classifications for Pancreatic Neuroendocrine Tumors
Jae Hee Cho, Ji Kon Ryu, Si Young Song, Jin-Hyeok Hwang, Dong Ki Lee, Sang Myung Woo, Young-Eun Joo, Seok Jeong, Seung-Ok Lee, Byung Kyu Park, Young Koog Cheon, Jimin Han, Tae Nyeun Kim, Jun Kyu Lee, Sung-Hoon Moon, Hyunjin Kim, Eun Taek Park, Jae Chul Hw
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Case Study

Papillary Carcinoma of the Thyroid Gland with Nodular Fasciitis-like Stroma: Ki Yong Na, Hyun-Soo Kim, Ji-Youn Sung, Won Seo Park, Youn Wha Kim; Korean J Pathol. 2013;47(2):167-171. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.167

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Abstract PDF

Papillary thyroid carcinoma with nodular fasciitis-like stroma (PTC-NFS) is a rare variant of PTC. The term 'PTC with fibromatosis-like stroma' has been used as a synonym to describe this variant. It is characterized by extensive proliferation of fibroblasts and myofibroblasts in the tumor stroma, which occurs in up to 80% of the tumors. We herein describe a case of PTC-NFS which developed in a 49-year-old woman with the demonstration of findings of ultrasonography, fine needle aspiration cytology and histological examination of the lesion. To characterize the stromal components, we investigated the expression of several immunohistochemical markers which have been shown to be expressed differently in nodular fasciitis (NF) and fibromatosis (FM). The immunostaining results demonstrated nuclear and cytoplasmic accumulation of β-catenin, cytoplasmic transforming growth factor-β expression and nuclear Smad expression in the stromal cells, suggesting that the stromal cells in this case have similar molecular profiles to those of FM rather than NF.

Citations

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Papillary thyroid carcinoma with desmoid-type fibromatosis: the clinicopathological features with characteristic imaging and molecular correlation requiring comprehensive treatment
Haining Huang, Lei Li, Xiaolong Liu, Lihua Zhao, Zhihong Cui, Renya Zhang, Shuai Chen
Human Pathology.2023; 136: 84. CrossRef
Papillary Thyroid Carcinoma with Desmoid-Type Fibromatosis: Review of Published Cases
Abdallah Roukain, Stefano La Rosa, Massimo Bongiovanni, Marie Nicod Lalonde, Valérie Cristina, Michael Montemurro, Stephane Cochet, Alexandra Luquain, Peter A. Kopp, Gerasimos P. Sykiotis
Cancers.2021; 13(17): 4482. CrossRef
Case of medullary thyroid carcinoma with desmoid‐type fibromatosis
Yoon Ah Cho, Young Lyun Oh
Pathology International.2020; 70(6): 364. CrossRef
SOX11 expression in a case of papillary thyroid carcinoma with fibromatosis/fasciitis-like stroma containing BRAF c.1799_1801delTGA and CTNNB1 c.133T>C mutations
Soon Boon Justin Wong, Min En Nga, Michal Michal, Tomas Vanecek, Ju Ee Seet, Fredrik Petersson
Virchows Archiv.2019; 475(4): 519. CrossRef
Papillary thyroid cancer with extrathyroidal extension of desmoid-type fibromatosis. A case report of an aggressive presentation of an uncommon pathologic entity
Eve M. Roth, Courtney E. Barrows, Michiya Nishino, Barry Sacks, Per-Olof Hasselgren, Benjamin C. James
International Journal of Surgery Case Reports.2019; 63: 5. CrossRef
Papillary thyroid carcinoma with nodular fasciitis-like stroma and β-catenin mutations should be renamed papillary thyroid carcinoma with desmoid-type fibromatosis
Caterina Rebecchini, Antoine Nobile, Simonetta Piana, Rossella Sarro, Bettina Bisig, Sykiotis P Gerasimos, Chiara Saglietti, Maurice Matter, Laura Marino, Massimo Bongiovanni
Modern Pathology.2017; 30(2): 236. CrossRef
Papillary thyroid carcinoma with desmoid-type fibromatosis: A clinical, pathological, and immunohistochemical study of 14 cases
Nami Takada, Mitsuyoshi Hirokawa, Masahiro Ito, Aki Ito, Ayana Suzuki, Miyoko Higuchi, Seiji Kuma, Toshitetsu Hayashi, Masao Kishikawa, Shuichi Horikawa, Akira Miyauchi
Endocrine Journal.2017; 64(10): 1017. CrossRef
A Case of Papillary Thyroid Carcinoma with Fasciitis-like Stroma
Toshihiko WAKU, Hiroshi SONOBE
Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association).2016; 77(12): 2892. CrossRef
Stromal Modulation and its Role in the Diagnosis of Papillary Patterned Thyroid Lesions
Sahar Aly Daoud, Reham Shehab El Nemr Esmail, Amal Ahmed Hareedy, Abdullah Khalil
Asian Pacific Journal of Cancer Prevention.2015; 16(8): 3307. CrossRef
Papillary Thyroid Carcinoma With Nodular Fasciitis–Like Stroma
Paula S. Ginter, Theresa Scognamiglio
International Journal of Surgical Pathology.2015; 23(4): 305. CrossRef
Notch and TGF-β/Smad3 pathways are involved in the interaction between cancer cells and cancer-associated fibroblasts in papillary thyroid carcinoma
Jie Zhang, Yuan Wang, Dan Li, Shanghua Jing
Tumor Biology.2014; 35(1): 379. CrossRef

Brief Case Report

Actinomycotic Brain Abscess Developed 10 Years after Head Trauma: Ki Yong Na, Ji-Hye Jang, Ji-Youn Sung, Youn Wha Kim, Yong-Koo Park; Korean J Pathol. 2013;47(1):82-85. Published online February 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.1.82

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Actinomyeces Cerebral Abscess Masquerading as Tuberculosis: Delayed Presentation following Head Trauma and Scalp Infection
Manish Kumar, Ankur Bajaj, Manjul Tripathi, BishanD Radotra, ManojK Tewari, ChiragK Ahuja
Neurology India.2019; 67(4): 1123. CrossRef

Case Reports

Multifocal Adenocarcinomas Arising within a Gastric Inverted Hyperplastic Polyp: Hyun-Soo Kim, Eun-Jung Hwang, Jae-Young Jang, Juhie Lee, Youn Wha Kim; Korean J Pathol. 2012;46(4):387-391. Published online August 23, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.4.387

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Abstract PDF

We present herein the occurrence of multifocal adenocarcinomas with a minute signet ring cell carcinoma that arose within a gastric inverted hyperplastic polyp (IHP) in a 40-year-old woman. Endoscopic ultrasonography demonstrated a heterogeneous hypoechoic mass in the third layer of the gastric wall. The endoscopic submucosal dissection specimen measuring 3.5×3.2×1.8 cm was a well-circumscribed protruding lesion that had a slit-shaped cavity. Histologically, the lesion consisted mainly of endophytic proliferation of hyperplastic columnar cells resembling normal foveolar epithelium. In addition, six foci of adenocarcinomas and a minute focus of signet ring cell carcinoma were randomly distributed in the superficial and deep regions. The adenocarcinoma was gradually transitioning from dysplasia, while the signet ring cell carcinoma was surrounded by hyperplastic foveolar epithelium. This is the first report of a gastric IHP with multifocal intramucosal adenocarcinomas and a signet ring cell carcinoma, and endoscopic submucosal dissection is used to completely resect it.

Citations

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Clinicopathologic and endoscopic characteristics of ten patients with gastric hamartomatous inverted polyp: a single center case series
Ningning Dong, Fandong Meng, Bing Yue, Junzhen Hou
BMC Gastroenterology.2024;[Epub] CrossRef
Gastric hamartomatous inverted polyp: Report of three cases with a review of the endoscopic and clinicopathological features
Takuya Ohtsu, Yu Takahashi, Mitsuo Tokuhara, Tomomitsu Tahara, Mitsuaki Ishida, Chika Miyasaka, Koji Tsuta, Makoto Naganuma
DEN Open.2023;[Epub] CrossRef
Gastric Inverted Hyperplastic Polyp Removed Using Endoscopic Submucosal Dissection
Jee Won Boo, Joon Sung Kim, Byung-Wook Kim
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2023; 23(1): 63. CrossRef
The Many Faces of Gastric Inverted Polyps: a case report
S.I. Kim, M.Y. Agapov, T.F. Savostyanov, A.A. Paratovskaya, I.A. Sokolova
Dokazatel'naya gastroenterologiya.2023; 12(2): 88. CrossRef
Large gastric hamartomatous inverted polyp accompanied by advanced gastric cancer: A case report
Gyerim Park, Jihye Kim, Sung Hak Lee, Younghoon Kim
World Journal of Clinical Cases.2023; 11(28): 6967. CrossRef
Activating KRAS and GNAS mutations in heterotopic submucosal glands of the stomach
Hourin Cho, Taiki Hashimoto, Tomoaki Naka, Yasushi Yatabe, Ichiro Oda, Yutaka Saito, Takaki Yoshikawa, Shigeki Sekine
Journal of Gastroenterology.2022; 57(5): 333. CrossRef
Gastric Inverted Polyps—Distinctive Subepithelial Lesions of the Stomach
Ji-Ye Kim, Soomin Ahn, Kyoung-Mee Kim, Sun Hee Chang, Han Seong Kim, Jun Haeng Lee, Jae J. Kim, Tae Sung Sohn, Hye Ju Kang, Mee Joo
American Journal of Surgical Pathology.2021; 45(5): 680. CrossRef
Signet-ring Cell Carcinoma in Hyperplastic Polyp of the Stomach
Kenta Yoshida, Tatsuya Mikami, Takao Oyama, Yuki Sato, Taro Saito, Takafumi Mikami, Chieko Itabashi, Yasushi Soma, Shinsaku Fukuda
Internal Medicine.2019; 58(24): 3531. CrossRef
Inverted Hyperplastic Polyp in Stomach: A Case Report and Literature Review
Yeon Ho Lee, Moon Kyung Joo, Beom Jae Lee, Ji-Ae Lee, Taehyun Kim, Jin Gu Yoon, Jung Min Lee, Jong-Jae Park
The Korean Journal of Gastroenterology.2016; 67(2): 98. CrossRef
Inflammatory myofibroblastic tumor‐like stromal proliferation within gastric inverted hyperplastic polyp
Byeong‐Joo Noh, Ji Won Min, Ji‐Youn Sung, Yong‐Koo Park, Juhie Lee, Youn Wha Kim
Pathology International.2016; 66(3): 180. CrossRef
Gastric inverted hyperplastic polyp: A rare cause of iron deficiency anemia
Jin Tak Yun, Seung Woo Lee, Dong Pil Kim, Seung Hwa Choi, Seok-Hwan Kim, Jun Kyu Park, Sun Hee Jang, Yun Jung Park, Ye Gyu Sung, Hae Jung Sul
World Journal of Gastroenterology.2016; 22(15): 4066. CrossRef
Gastric Inverted Hyperplasic Polyp Composed Only of Pyloric Glands
Minsun Jung, Kyueng-Whan Min, Young-Joon Ryu
International Journal of Surgical Pathology.2015; 23(4): 313. CrossRef
A Pedunculated Submucosal Lesion in the Stomach with Inverted Downgrowth
Yoshihiko Miyamoto, Naoki Muguruma, Seisuke Okamura, Yasuyuki Okada, Shinji Kitamura, Koichi Okamoto, Akiko Yoneda, Noriko Kagawa, Tetsuji Takayama
Internal Medicine.2014; 53(15): 1625. CrossRef

Multifocal Renal Cell Carcinoma of Different Histological Subtypes in Autosomal Dominant Polycystic Kidney Disease: Ki Yong Na, Hyun-Soo Kim, Yong-Koo Park, Sung-Goo Chang, Youn Wha Kim; Korean J Pathol. 2012;46(4):382-386. Published online August 23, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.4.382

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Abstract PDF

Renal cell carcinoma (RCC) in autosomal dominant polycystic kidney (ADPKD) is rare. To date, 54 cases of RCC in ADPKD have been reported. Among these, only 2 cases have different histologic types of RCC. Here we describe a 45-year-old man who received radical nephrectomy for multifocal RCC with synchronous papillary and clear cell histology in ADPKD and chronic renal failure under regular hemodialysis. The case reported herein is another example of the rare pathological finding of RCC arising in a patient with ADPKD.

Citations

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Renal Cell Carcinoma in the Background of Autosomal Dominant Polycystic Kidney Disease: Report of Two Cases and Review of Literature
Poorva Vias, Shikha Goyal, Renu Madan, Nandita Kakkar, Ridhi Sood, Kannan Periasamy, Rajender Kumar
Indian Journal of Medical and Paediatric Oncology.2024; 45(02): 188. CrossRef
Detection of two synchronous histologically different renal cell carcinoma subtypes in the same kidney: a case report and review of the literature
Mohamed Sakr, Merhan Badran, Sarah Ahmed Hassan, Mohamed Elsaqa, Mohamed Anwar Elwany, Nevine M. F. El Deeb, Mohamed Sharafeldeen
Journal of Medical Case Reports.2024;[Epub] CrossRef
The Importance of Genetic Testing in the Differential Diagnosis of Atypical TSC2-PKD1 Contiguous Gene Syndrome—Case Series
Petronella Orosz, Zita Kollák, Ákos Pethő, András Fogarasi, György Reusz, Kinga Hadzsiev, Tamás Szabó
Children.2023; 10(3): 420. CrossRef
Autosomal dominant polycystic kidney disease coming up with an unusual presentation of renal cell carcinoma on its first encounter
Asma Shoukat Masumdar, Anitha Padmanabhan, Nitin Gadgil, Gargi Padalkar
Indian Journal of Pathology and Oncology.2023; 10(4): 417. CrossRef
Sarcomatoid renal cell carcinoma with autosomal dominant polycystic kidney disease: a case report and literature review
Yuji Hakozaki, Kiyotaka Uchiyama, Akane Yanai, Daisuke Yamada, Yuka Kamijo, Yoshitaka Ishibashi
CEN Case Reports.2021; 10(2): 199. CrossRef
CT and MRI findings of cystic renal cell carcinoma: comparison with cystic collecting duct carcinoma
Qingqiang Zhu, Jun Ling, Jing Ye, Wenrong Zhu, Jingtao Wu, Wenxin Chen
Cancer Imaging.2021;[Epub] CrossRef
Incidental occurrence of papillary renal cell carcinoma in the native kidney with autosomal dominant polycystic kidney disease after renal transplantation: A case report
Mahmoud Abbas, Melanie Pätzel, Angelika Thurn, Olaf Brinkmann, Olaf Bettendorf
Molecular and Clinical Oncology.2021;[Epub] CrossRef
Xp11.2 translocation renal cell carcinoma in the autosomal dominant polycystic kidney disease patient with preserved renal function
Hyuk Huh, Hyung Ah Jo, YongJin Yi, Seung Hyup Kim, Kyung Chul Moon, Curie Ahn, Hayne Cho Park
The Korean Journal of Internal Medicine.2017; 32(6): 1108. CrossRef
The Association between Autosomal Dominant Polycystic Kidney Disease and Renal Cell Carcinoma
Chase C. Hansen, Michael Derrick, Irfan Warriach, James Thomas Cammack, James Thomas Cammack, Werner de Riese
Open Journal of Urology.2015; 05(06): 84. CrossRef
The MSCT and MRI findings of collecting duct carcinoma
Q. Zhu, J. Wu, Z. Wang, W. Zhu, W. Chen, S. Wang
Clinical Radiology.2013; 68(10): 1002. CrossRef
Thyroid-like follicular carcinoma of the kidney in a patient with nephrolithiasis and polycystic kidney disease: a case report
Metka Volavšek, Margareta Strojan-Fležar, Gregor Mikuz
Diagnostic Pathology.2013;[Epub] CrossRef

Ectopic Epididymis in Testicular Appendices: Report of Two Cases.: Hyun Soo Kim, Gou Young Kim, Hyung Lae Lee, Youn Wha Kim, Sung Jig Lim; Korean J Pathol. 2011;45:S11-S14.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.S1.S11

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Abstract PDF: We report two cases of ectopic epididymal ducts and efferent ductules in the testicular appendices (TAs) of adult men with normally descended testes. In both cases, a sessile TA was incidentally found at the upper pole of the right testis during the scrotal hydrocelectomy. Microscopically, a few closely arranged tubules were detected within the TA. In the first case, the tubules were lined with a pseudostratified columnar epithelium with numerous, long microvilli, and were surrounded by a smooth muscle coat. In contrast, in the second case, the tubules had a wavy luminal surface, because ciliated columnar cells alternated with groups of cuboidal cells. In both cases, strong CD10 immunoreactivity was observed in the luminal border of the lining epithelium. Surgical pathologists should be aware of the presence of both ectopic epididymal ducts and efferent ductules that can occur in TAs, in order to avoid misinterpretation as transected, functional reproductive structures.

Original Article

14-bp Insertion/Deletion Polymorphism of the HLA-G Gene in Osteosarcoma Patients.: Ahrim Moon, Su Kang Kim, Joo Ho Chung, Ki Yong Na, Liliana G Olvi, Eduardo Santini-Araujo, Youn Wha Kim, Yong Koo Park; Korean J Pathol. 2011;45(5):485-490.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.5.485

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Abstract PDF

BACKGROUND
The major histocompatibility complex class I, G (human leukocyte antigen-G [HLA-G]) gene plays a vital role in the suppression of immune responses. Recently, a number of studies have reported an association between HLA-G and diseases (pregnancy complications, organ transplantation, and tumors). Some of the studies have revealed that the 14-bp insertion/deletion polymorphism might be associated with various diseases. The aim of the present study was to explore a possible influence of the 14-bp insertion/deletion polymorphism on osteosarcoma.
METHODS
Genomic DNA was extracted from 75 formalin-fixed, paraffin-embedded tumor tissues derived from patients with conventional osteosarcoma (OSA) and 183 peripheral blood samples of healthy controls. Fifty-eight cases were South Korean patients with OSA and 17 cases were Argentine patients with OSA. The HLA-G 14-bp insertion/deletion polymorphism at exon 8 of the HLA-G locus was analyzed by polymerase chain reaction.
RESULTS
There was a significantly different distribution profile for the 14-bp genotypes between the Korean OSA and Korean control groups. Specifically, there were more heterozygote 210 bp/224 bp genotypes in the Korean OSA group when compared to the Korean control group (62.1% vs 40.4%, p=0.002).
CONCLUSIONS
The results suggest that HLA-G heterozygote patients may be more susceptible to OSA in the Korean population.

Citations

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14-bp Insertion/Deletion Polymorphism of the HLA-G gene in Breast Cancer among Women from North Western Iran
Mehdi Haghi, Mohammad Ali Hosseinpour Feizi, Majid Sadeghizadeh, Abbas Sahebghadam Lotfi
Asian Pacific Journal of Cancer Prevention.2015; 16(14): 6155. CrossRef

Case Report

Collision Tumor Composed of a Granulocytic Sarcoma and an Adenocarcinoma of the Stomach: A Case Report.: Kyu Yeoun Won, Juhie Lee, Yong Ho Kim, Youn Wha Kim; Korean J Pathol. 2011;45(2):201-204.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.2.201

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Abstract PDF

Granulocytic sarcoma, also called chloroma or myeloblastoma, is an extramedullary invasive tumor composed of neoplastic myeloid cells. In this report, we describe a 43-year-old male patient with a collision tumor composed of an adenocarcinoma and a granulocytic sarcoma in the stomach. The coexistence of a granulocytic sarcoma and adenocarcinoma in the stomach has, to the best of our knowledge, not been reported in the literature. The diagnosis of granulocytic sarcoma is very difficult; especially in the absence of concurrent hematologic disease or in the uncommon setting of coexistence with another tumor. Cautious observation is needed when a finding of unusual atypical cells admixed with an adenocarcinoma in the stomach is confronted.

Citations

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Leukemia in gastrointestinal organs as cause of treatment failure: 378 cases analyzed
Isabel Cunningham, Daniel Worthley
American Journal of Hematology.2018; 93(11): 1327. CrossRef
One cancer destroys another: short report of a myeloid sarcoma causing ischaemic necrosis of an adenocarcinoma
D Tucker, P Sarsfield, I Chandler, P Kerr
Journal of Clinical Pathology.2014; 67(1): 70. CrossRef

Original Articles

The Global Histone Modification Patterns of Osteosarcoma.: Sung Im Do, Sung Jig Lim, Youn Wha Kim, Liliana G Olvi, Eduardo Santini-Araujo, Yong Koo Park; Korean J Pathol. 2011;45(2):146-150.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.2.146

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Abstract PDF: BACKGROUND
Epigenetic alteration may affect a patient's prognosis by altering the development and progression of the tumor. Some recent reports have identified a correlation between histone modification and patient outcome. However, no studies have been conducted on global histone modification in osteosarcomas.
METHODS
We investigated histone modification in 54 cases of osteosarcoma by performing immunohistochemical staining. The immunohistochemical expression of four histone modification markers, acetylated H4 lysine 12 (H4K12Ac), acetylated H3 lysine 18, trimethylated H3 lysine 27, and dimethylated H3 lysine 4 were evaluated.
RESULTS
High H4K12Ac expression was correlated with patient age (p=0.011). However, the other histone modification markers showed no correlation with any of the clinicopathological data such as survival, tumor grade, tumor site, metastasis, age, or gender.
CONCLUSIONS
Our study showed that all four histone modification markers are expressed in osteosarcoma (median expression rate, 40 to 60%). However, we did not find a correlation with the clinicopathological factors except for age. Further study to evaluate the reason for the association between H4K12Ac and patient age is needed.

Uncoupling Protein 2 (UCP2) and p53 Expression in Invasive Ductal Carcinoma of Breast.: Kyu Yeoun Won, Gou Young Kim, Youn Wha Kim, Sung Jig Lim, Jeong Yoon Song; Korean J Pathol. 2010;44(6):565-570.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.565

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Abstract PDF

BACKGROUND
Uncoupling protein 2 (UCP2) is a recently identified mitochondrial inner membrane anion carrier and a negative regulator of reactive oxygen species production. In this study, we evaluated the characteristics and relationships of UCP2 and p53 expression in breast cancer tissues.
METHODS
Tissue microarray slides from 107 cases of invasive ductal carcinoma of the breast were constructed, UCP2 and p53 immunohistochemical staining was conducted, and clinicopathological correlations were investigated.
RESULTS
UCP2 expression in invasive ductal carcinoma was high in 53 cases (49.5%), while p53 expression in invasive ductal carcinoma was high in 37 cases (34.6%). UCP2 expression was correlated significantly with histological grade (p = 0.038) and mitotic count (p = 0.050). UCP2 expression was correlated significantly with p53 expression in invasive ductal carcinoma of the breast (p = 0.045). UCP2 expression (p = 0.8308) and p53 expression (p = 0.3292) showed no significant difference for the overall survival rate in patients with invasive ductal carcinoma.
CONCLUSIONS
UCP2 expression in invasive ductal carcinoma increased proportionally with histological grade and mitotic count. High UCP2 expression in invasive ductal carcinoma was observed in conjunction with high p53 expression.

Citations

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Forkhead box protein A1 inhibits the expression of uncoupling protein 2 in hydrogen peroxide-induced A549 cell line
Lan Song, Zhaojun Xu, Ling Li, Mei Hu, Lijuan Cheng, Lingli Chen, Bo Zhang
Cell Stress and Chaperones.2014; 19(1): 53. CrossRef
New Aspects of Mitochondrial Uncoupling Proteins (UCPs) and Their Roles in Tumorigenesis
Delira Robbins, Yunfeng Zhao
International Journal of Molecular Sciences.2011; 12(8): 5285. CrossRef

Case Report

Chondromyxoid Fibroma of the Ethmoid Sinus Complicated by a Brain Abscess: A Case Report and Literature Review.: Kyu Yeoun Won, Juhie Lee, Youn Wha Kim, Eui Jong Kim, Sung Wan Kim, Yong Koo Park; Korean J Pathol. 2010;44(5):547-550.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.5.547

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Abstract PDF

Chondromyxoid fibroma (CMF) is a relatively rare bone tumor that was first described by Jaffe and Lichtenstein in 1948. CMF of the sinonasal tract is very rare. A 28-year-old male presented with long-standing, intermittent, pulsatile pain in the right temporal area. A computed tomography scan showed a 20 x 19 mm round, bony density in the right ethmoid sinus with fluid collection in the ethmoid and frontal sinuses. Additionally, a cystic lesion with surrounding edema was found in the right frontal lobe. The patient underwent a partial ethmoidectomy and frontostomy. A histological examination showed polygonal and stellate cells in a myxoid and chondroid background with a pattern of lobulation and plaque-like calcification. The bone lesion was revealed as a CMF of the ethmoidal sinus, and the frontal lobe cystic lesion was a brain abscess associated with the CMF. We present the case of a CMF of the ethmoid sinus complicated by a brain abscess.

Citations

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Juxtacortical chondromyxoid fibroma in the small bones: two cases with unusual location and a literature review
Sun-Ju Oh, So Hak Chung
Journal of Pathology and Translational Medicine.2022; 56(3): 157. CrossRef
Treatment of cryotherapy and orthotopic transplantation following chondromyxoid fibroma of zygomatic bone
Zhi-Chao Zhu, Yi-Fei Yang, Xu Yang, Yan Liu, Yi-nan Cheng, Zhao-Yao Sun, Tian-Shu Xu, Wen-Jun Yang
Medicine.2018; 97(31): e11707. CrossRef

Original Article

Clinicopathological Significance of Invasive Ductal Carcinoma with High Prevalence of CD44(+)/CD24(-/low) Tumor Cells in Breast Cancer.: Ji Youn Sung, Gou Young Kim, Yong Koo Park, Juhie Lee, Youn Wha Kim, Sung Jig Lim; Korean J Pathol. 2010;44(4):390-396.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.4.390

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Abstract PDF

BACKGROUND
Epithelial tumor cells with a CD44(+)/CD24(-/low) immunoprofile may have the ability to cause breast cancer. We studied these cells and their clinicopathological significance.
METHODS
The clinicopathologic findings of 100 invasive ductal carcinoma (IDC) cases and 45 ductal carcinoma in situ (DCIS) cases were reviewed. CD44(+)/CD24(-/low) tumor cells were identified by immunohistochemistry, and their clinicopathological implications in IDC and DCIS were analyzed.
RESULTS
IDC with a high prevalence of CD44(+)/CD24(-/low) tumor cells was significantly associated with larger mass, higher grade, estrogen receptor (ER) negativity, and tumor cells with a higher frequency of metastasis. The proportion of CD44(+)/CD24(-/low) tumor cells in IDC, and its DCIS components was not significantly different, whereas the proportion of CD44(+)/CD24(-/low) tumor cells was higher in DCIS than in the DCIS component of IDC (p < 0.001).
CONCLUSIONS
IDC with a high prevalence of CD44(+)/CD24(-/low) tumor cells might correlate with aggressive features, such as ER and higher grades. Moreover, the proportion of CD44(+)/CD24(-/low) tumor cells in the DCIS components of IDC and DCIS might harbor different biology, which may lead to differences in cancer progression and early carcinogenesis.

Citations

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Clinicopathologic Characteristics of Breast Cancer Stem Cells Identified on the Basis of Aldehyde Dehydrogenase 1 Expression
Yoon Seok Kim, Min Jung Jung, Dong Won Ryu, Chung Han Lee
Journal of Breast Cancer.2014; 17(2): 121. CrossRef
CD44/CD24 as potential prognostic markers in node-positive invasive ductal breast cancer patients treated with adjuvant chemotherapy
Agnieszka Adamczyk, Joanna A. Niemiec, Aleksandra Ambicka, Anna Mucha-Małecka, Jerzy Mituś, Janusz Ryś
Journal of Molecular Histology.2014; 45(1): 35. CrossRef

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