Abstract

Hyperplastic polyps are usually found in the stomach and they account for 50 to 90% of all gastric epithelial polyps. In contrast to the adenomatous polyps, it has been reported that most hyperplastic polyps are benign. However, in rare cases hyperplastic polyps have revealed carcinoma, and the incidence of malignant changes is generally recognized to be about 1 to 3%. Most of the reported cases of a hyperplastic gastric polyp with a transformation to adenocarcinoma were well differentiated histopathologically. Herein we report on an extremely rare case that involved the association of a hyperplastic polyp and focal signet ring cell carcinoma in the remnant stomach after subtotoal gastrectomy. (Korean J Gastrointest Endosc 2010;40:325-328)

• Keywords: Hyperplastic polyp, Gastrectomy, Signet ring cell carcinoma