Journal of Gastric Cancer  2013;13(2):117-120

doi:10.5230/jgc.2013.13.2.117

Adenocarcinoma Occurring in a Gastric Hyperplastic Polyp Treated with Endoscopic Submucosal Dissection.

Hye Won JANG 1 ; Hyun Yong JEONG ; Seok Hyun KIM ; Sun Hyung KANG ; Jae Kyu SEONG ; Kyu Sang SONG ; Hee Seok MOON

Affiliations

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Keywords

Gastric hyperplastic polyp; Adenocarcinoma; Endoscopic submucosal dissection

Country

Republic of Korea

Language

English

Abstract

Gastric hyperplastic polyps are generally considered benign lesions, although rare cases of adenocarcinoma have been reported. Although, the underlying mechanism of carcinogenesis in gastric hyperplastic polyps is still uncertain, most malignant polyps are seen to originate from dysplastic epithelium rather than from hyperplastic epithelium. Herein, we report the case of a woman diagnosed with adenocarcinoma that originated from a hyperplastic gastric polyp that was successfully removed by endoscopic submucosal dissection. In this case, we observed adenomatous changes around the cancerous component.