Focal Intramucosal Adenocarcinoma Occurring in Gastric Hyperplastic Polyps: Two Case Reports.
Gastric hyperplastic polyps are generally considered benign lesions, although rare cases of adenocarcinoma have been reported. Two cases of intramucosal adenocarcinoma originating from gastric hyperplastic polyps that were successfully removed by endoscopic mucosal resection or endoscopic submucosal dissection are reported. On pathological examination, adenocarcinoma limited to the hyperplastic foveolar epithelial mucosa of the gastric hyperplastic polyps was observed.
Department of Gastroenterology, Chikamori Hospital, Kochi 780-8522, Japan ; Department of Endoscopic Diagnostics and Therapeutics, Kochi Medical School, Kochi University, Nankoku 783-8505, Japan.
Keisuke
K
Taniuchi
Department of Gastroenterology, Chikamori Hospital, Kochi 780-8522, Japan.
Mitsuo
M
Okada
Department of Gastroenterology, Chikamori Hospital, Kochi 780-8522, Japan.
Hiroshi
H
Sakaeda