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Tạp chí Y Dược học - Vol 1. No. 1 năm 2012

Endoscopic, histopathological findings and HER2 overexpression in gastric adenocarcinoma

Le Viet Nho, Tran Van Huy, Dang Cong Thuan, Ta Van To

2012 - Vol 1. No. 1, trang 68

DOI: 10.34071/jmp.2011.1e.10

Tóm tắt

Background and aim: HER2 is considered to have prognostic value in gastric cancer and to test for HER2 overexpression to help to select candidates for targeted therapy with trastuzumab. This study is aimed at the assessing endoscopic and histopathological characteristics of gastric adenocarcinoma and their relationship with HER2 overexpression. Objectives and methods: Biopsy samples from 64 gastric cancer patients were examined for HER2 status by immunohistochemical staining. Results: 7.8% of tumors were cardia tumors and 92.2% were non-cardia tumors. Using the Lauren classification, 42.2% were intestinal type and 57.8% were diffuse type. Using WHO classification, 43.8% were tubular adenocarcinoma, 7.8% were mucinous adenocarcinoma, 17.2% were signet-ring cell carcinoma, and 31.3% were undifferentiated carcinoma. 29.7% were well-differentiated, 18.8% were moderately-differentiated, and 51.6% were poorly-differentiated carcinoma. HER2 was positive in 23.5% of gastric carcinomas, 40% cardia tumors and 22% non-cardia tumors. HER2 positivity among polypoid, fungating, ulcerated, and infiltrative types were 30.8%, 37%, 6.3% and 0%, respectively. HER2 overexpression in intestinal type was higher than that in diffuse type (37% vs. 13.5%, p = 0.04). HER2 overexpression in tubular adenocarcinoma, mucinous adenocarcinoma, signet-ring cell carcinoma, and undifferentiated carcinoma was 35.7%, 9.1%, 20% and 15%, respectively. 36.8% of well-differentiated tumors, 33.3% moderately-differentiated tumors, and 12.1% of poorly-differentiated tumors were found to be HER2-positive. Conclusions: HER2 overexpression was found in 23.5% of gastric carcinoma and was associated with its endoscopic findings and histopathologic types. Keywords: HER2, gastric cancer.

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Trích dẫn bài báo

Le Viet Nho, Tran Van Huy, Dang Cong Thuan, Ta Van To. (2012). Endoscopic, histopathological findings and HER2 overexpression in gastric adenocarcinoma. Tạp chí Y Dược học, , 68. DOI: 10.34071/jmp.2011.1e.10

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Tạp chí Y Dược học thuộc Trường Đại học Y Dược- Đại học Huế được phép hoạt động báo chí theo giấy phép số 1720/GP-BTTTT ngày 15 tháng 11 năm 2010 và được Bộ Khoa học – Công nghệ cấp mã số ISSN 1859-3836 theo Quyết định số 009/TTKHCN-ISSN ngày 22 tháng 03 năm 2011

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