title: Adenocarcinoma occurring in a gastric hyperplastic polyp treated with endoscopic submucosal dissection.
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.
authors.affiliation: Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon, Korea.
authors.forename: Hye Won
authors.initials: HW
authors.lastname: Jang
authors.forename: Hyun Yong
authors.initials: HY
authors.lastname: Jeong
authors.forename: Seok Hyun
authors.initials: SH
authors.lastname: Kim
authors.forename: Sun Hyung
authors.initials: SH
authors.lastname: Kang
authors.forename: Jae Kyu
authors.initials: JK
authors.lastname: Seong
authors.forename: Kyu Sang
authors.initials: KS
authors.lastname: Song
authors.forename: Hee Seok
authors.initials: HS
authors.lastname: Moon
keywords: Adenocarcinoma; Endoscopic submucosal dissection; Gastric hyperplastic polyp