Gut and Liver 2010; 4(1): 146-148 https://doi.org/10.5009/gnl.2010.4.1.146 Inflammatory Myoglandular Polyps Causing Hematochezia
Author Information
Sook Hee Chung*, Byoung Kwan Son*, Young Sook Park*, Yun Ju Jo*, Seong Hwan Kim*, Dae Won Jun*, Eun Sun Cheong*, Won Mi Lee, and Jong Eun Ju
Departments of *Internal Medicine and Pathology, Eulji General Hospital, Eulji University School of Medicine, Seoul, Korea

Byoung Kwan Son
© The Korean Society of Gastroenterology, the Korean Society of Gastrointestinal Endoscopy, the Korean Society of Neurogastroenterology and Motility, Korean College of Helicobacter and Upper Gastrointestinal Research, Korean Association the Study of Intestinal Diseases, the Korean Association for the Study of the Liver, Korean Pancreatobiliary Association, and Korean Society of Gastrointestinal Cancer. All rights reserved.

Abstract
We report herein three cases of inflammatory myoglandular polyp (IMGP) presenting as hematochezia. The polyps had pedunculated, red, and smooth features, and were 12, 12, and 15 mm in diameter and located in the sigmoid colon, transverse colon, and rectum, respectively. Endoscopic polypectomies were performed. Histologic examination of the recovered specimens revealed inflammatory granulation in the lamina propria mucosa, proliferation of smooth muscle, and hyperplastic glands with cystic dilatation. The three colon polyps were finally diagnosed both clinically and histologically as IMGP. Endoscopists should bear in mind that a polyp featuring endoscopic findings of pedunculation or semipedunculation; a red, smooth, spherical, and hyperemic surface; and patchy mucosa exudation and erosion is likely to be an IMGP. (Gut Liver 2010;4:146-148)
Keywords: Inflammatory myoglandular polyp; Endoscopic polypectomy; Gastrointestinal hemorrhage
Abstract
We report herein three cases of inflammatory myoglandular polyp (IMGP) presenting as hematochezia. The polyps had pedunculated, red, and smooth features, and were 12, 12, and 15 mm in diameter and located in the sigmoid colon, transverse colon, and rectum, respectively. Endoscopic polypectomies were performed. Histologic examination of the recovered specimens revealed inflammatory granulation in the lamina propria mucosa, proliferation of smooth muscle, and hyperplastic glands with cystic dilatation. The three colon polyps were finally diagnosed both clinically and histologically as IMGP. Endoscopists should bear in mind that a polyp featuring endoscopic findings of pedunculation or semipedunculation; a red, smooth, spherical, and hyperemic surface; and patchy mucosa exudation and erosion is likely to be an IMGP. (Gut Liver 2010;4:146-148)
Keywords: Inflammatory myoglandular polyp; Endoscopic polypectomy; Gastrointestinal hemorrhage
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