Copyright
©2008 The WJG Press and Baishideng. All rights reserved.
World J Gastroenterol. Aug 14, 2008; 14(30): 4838-4840
Published online Aug 14, 2008. doi: 10.3748/wjg.14.4838
Published online Aug 14, 2008. doi: 10.3748/wjg.14.4838
Lobulated inflammatory myoglandular polyp in the ascending colon observed by magnifying endoscopy and treated with endoscopic polypectomy
Hiromitsu Kanzaki, Shoji Hirasaki, Masato Okuda, Kenichiro Kudo, Seiyuu Suzuki, Department of Internal Medicine, Sumitomo Besshi Hospital, Niihama 7928543, Japan
Author contributions: Kanzaki H and Hirasaki S contributed equally to this work; Kanzaki H, Hirasaki S, Okuda M, Kudo K and Suzuki S were involved in the care of the patient; Kanzaki H and Hirasaki S performed the endoscopic resection; Hirasaki S and Kanzaki H wrote the paper.
Correspondence to: Dr. Shoji Hirasaki, Department of Internal Medicine, Sumitomo Besshi Hospital, 3-1 Ohji-cho, Niihama 7928543, Japan. shoji_hirasaki@ni.sbh.gr.jp
Telephone: +81-897-377111 Fax: +81-897-377121
Received: May 26, 2008
Revised: June 30, 2008
Accepted: July 7, 2008
Published online: August 14, 2008
Revised: June 30, 2008
Accepted: July 7, 2008
Published online: August 14, 2008
Abstract
The patient was a 33-year-old man with hematochezia. Colonoscopy revealed a lobulated peduncular polyp with bleeding, about 40 mm in diameter, in the ascending colon. The polyp had both red and white components and a mosaic pattern. Magnifying observation revealed a red rugged surface component, and smooth white nodules with enlarged round or oval crypt openings. Endoscopic polypectomy was performed. Histological examination of the specimen revealed inflammatory granulation tissue in the lamina propria, proliferation of smooth muscle, and hyperplastic glands with cystic change. This polyp was diagnosed as inflammatory myoglandular polyp (IMGP). Lobulated-type IMGP in the ascending colon is rare.
Keywords: Inflammatory polyp, Colonoscopy, Magnifying endoscopy, Endoscopic polypectomy, Hematochezia