Lee Yeon Ho, Joo Moon Kyung, Lee Beom Jae, Lee Ji-Ae, Kim Taehyun, Yoon Jin Gu, Lee Jung Min, Park Jong-Jae
Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
Korean J Gastroenterol. 2016 Feb;67(2):98-102. doi: 10.4166/kjg.2016.67.2.98.
An inverted hyperplastic polyp (IHP) found in stomach is rare and characterized by downward growth of hyperplastic mucosal component into the submucosa. Because of such characteristic, IHP can be misdiagnosed as subepithelial tumor or malignant tumor. In fact, adenocarcinoma was reported to have coexisted with gastric IHP in several previous reports. Because only 18 cases on gastric IHP have been reported in English and Korean literature until now, pathogenesis and clinical features of gastric IHP and correlation with adenocarcinoma have not been clearly established. Herein, we report a case of gastric IHP which was initially misdiagnosed as gastrointestinal stromal tumor and resected using endoscopic submucosal dissection. Literature review of previously published case reports on gastric IHP is also presented.
胃内发现的倒置增生性息肉（IHP）较为罕见，其特征是增生的黏膜成分向下生长至黏膜下层。由于这一特征，IHP可能被误诊为上皮下肿瘤或恶性肿瘤。事实上，此前有几份报告称腺癌与胃IHP并存。由于截至目前，英文和韩文文献中仅报道了18例胃IHP，胃IHP的发病机制、临床特征以及与腺癌的相关性尚未明确。在此，我们报告一例最初被误诊为胃肠道间质瘤并经内镜黏膜下剥离术切除的胃IHP病例。同时还对先前发表的关于胃IHP的病例报告进行了文献综述。
