title: Gastric inverted hyperplasic polyp composed only of pyloric glands: a rare case report and review of the literature.
abstract: Inverted hyperplastic polyp (IHP) in stomach is a rare benign gastric polypoid lesion, characterized by downward growth of hyperplastic mucosal glands into the submucosal layer. In most previous reported cases, gastric IHP showed mixtures of fundic-type gland, pyloric-type gland, and foveolar-type epithelium. Also, a case of IHP composed of only one type of gland is extremely rare. This report describes a case of a 70-year-old man with gastric IHP, composed only of pyloric-type gland. It was removed completely by endoscopic submucosal dissection, and patient showed no recurrence over 2 years after treatment.
authors.affiliation: Kangwon National University, Chuncheon, Korea.
authors.forename: Minsun
authors.initials: M
authors.lastname: Jung
authors.affiliation: KangBuk Samsung Hospital, Seoul, Korea.
authors.forename: Kyueng-Whan
authors.initials: KW
authors.lastname: Min
authors.affiliation: Kangwon National University, Chuncheon, Korea mindmader@gmail.com.
authors.forename: Young-Joon
authors.initials: YJ
authors.lastname: Ryu
mesh_terms: D000368:Aged; D005753:Gastric Mucosa / Q000473:pathology*; D006801:Humans; D008297:Male; D011127:Polyps / Q000473:pathology; D013272:Stomach Diseases / Q000473:pathology*
keywords: humans; hyperplasia; polyps; pylorus; stomach