- Analysis of Mutations in Epidermal Growth Factor Receptor Gene in Korean Patients with Non-small Cell Lung Cancer: Summary of a Nationwide Survey
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Sang Hwa Lee, Wan Seop Kim, Yoo Duk Choi, Jeong Wook Seo, Joung Ho Han, Mi Jin Kim, Lucia Kim, Geon Kook Lee, Chang Hun Lee, Mee Hye Oh, Gou Young Kim, Sun Hee Sung, Kyo Young Lee, Sun Hee Chang, Mee Sook Rho, Han Kyeom Kim, Soon Hee Jung, Se Jin Jang, The Cardiopulmonary Pathology Study Group of Korean Society of Pathologists
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J Pathol Transl Med. 2015;49(6):481-488. Published online October 13, 2015
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DOI: https://doi.org/10.4132/jptm.2015.09.14
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- Background
Analysis of mutations in the epidermal growth factor receptor gene (EGFR) is important for predicting response to EGFR tyrosine kinase inhibitors. The overall rate of EGFR mutations in Korean patients is variable. To obtain comprehensive data on the status of EGFR mutations in Korean patients with lung cancer, the Cardiopulmonary Pathology Study Group of the Korean Society of Pathologists initiated a nationwide survey. Methods: We obtained 1,753 reports on EGFR mutations in patients with lung cancer from 15 hospitals between January and December 2009. We compared EGFR mutations with patient age, sex, history of smoking, histologic diagnosis, specimen type, procurement site, tumor cell dissection, and laboratory status. Results: The overall EGFR mutation rate was 34.3% in patients with non-small cell lung cancer (NSCLC) and 43.3% in patients with adenocarcinoma. EGFR mutation rate was significantly higher in women, never smokers, patients with adenocarcinoma, and patients who had undergone excisional biopsy. EGFR mutation rates did not differ with respect to patient age or procurement site among patients with NSCLC. Conclusions: EGFR mutation rates and statuses were similar to those in published data from other East Asian countries.
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Hyo Sup Shim, Yoon-La Choi, Lucia Kim, Sunhee Chang, Wan-Seop Kim, Mee Sook Roh, Tae-Jung Kim, Seung Yeon Ha, Jin-Haeng Chung, Se Jin Jang, Geon Kook Lee Journal of Pathology and Translational Medicine.2017; 51(3): 242. CrossRef - MET Exon 14 Skipping Mutations in Lung Adenocarcinoma: Clinicopathologic Implications and Prognostic Values
Geun Dong Lee, Seung Eun Lee, Doo-Yi Oh, Dan-bi Yu, Hae Min Jeong, Jooseok Kim, Sungyoul Hong, Hun Soon Jung, Ensel Oh, Ji-Young Song, Mi-Sook Lee, Mingi Kim, Kyungsoo Jung, Jhingook Kim, Young Kee Shin, Yoon-La Choi, Hyeong Ryul Kim Journal of Thoracic Oncology.2017; 12(8): 1233. CrossRef - Epidermal growth factor receptor (EGFR) mutations in non-small cell lung cancer (NSCLC) of Yunnan in southwestern China
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- Epithelioid Trophoblastic Tumor: Clinicopathologic and Immunohistochemical Analysis of Three Cases
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Woo Jung Sung, Hyeong Chan Shin, Min-Kyung Kim, Mi Jin Kim
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Korean J Pathol. 2013;47(1):67-73. Published online February 25, 2013
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DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.1.67
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Epithelioid trophoblastic tumor is an unusual type of trophoblastic tumor. Here we report on the clinicopathologic and immunohistochemical features of three cases of epithelioid trophoblastic tumor. All three patients were of reproductive age and presented with vaginal bleeding and mild elevation of human chorionic gonadotropin (hCG). All patients underwent a hysterectomy. The tumors consisted of epithelioid intermediate trophoblastic cells that were mononucleated and eosinophilic, or showed clear cytoplasm on microscopic examination. One case presented with a focal choriocarcinoma component. Immunohistochemically, the tumors displayed diffuse positivity for cytokeratin 18, E-cadherin, epidermal growth factor receptor, and p53 and focal positivity for p63 and hCG. However, expression of α-inhibin and placental alkaline phosphatase was almost negative. Tests for human placental lactogen and epithelial membrane antigen were also negative in all cases.
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Citations
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