A case of idiopathic colonic varices: a rare cause of hematochezia misconceived as tumor

• Published in: World journal of gastroenterology : WJG Vol. 12; no. 16; pp. 2629 - 2632
• Main Authors: Han, Joung-Ho, Jeon, Won-Joong, Chae, Hee-Bok, Park, Seon-Mee, Youn, Sei-Jin, Kim, Seok-Hyung, Bae, Il-Hun, Lee, Sang-Jeon
• Format: Journal Article
• Language: English
• Published: United States Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea%Department of Pathology, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea%Department of Radiology, College of Medicine,Chungbuk National University, Cheongju, Republic of Korea%Department of General Surgery, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea 28.04.2006; Baishideng Publishing Group Co., Limited
• Subjects: Adult; Case Report; Colon - blood supply; Colonic Neoplasms - diagnosis; Diagnostic Errors; Gastrointestinal Hemorrhage - etiology; Humans; Male; Varicose Veins - complications; Varicose Veins - diagnosis; Idiopathic colonic varices; Hemangioma; Colon cancer; Hematochezia
• ISSN: 1007-9327; 2219-2840
• DOI: 10.3748/wjg.v12.i16.2629

Colonic varices are a very rare cause of lower gastrointestinal bleeding. Fewer than 100 cases of colonic varices, and 30 cases of idiopathic colonic varices (ICV) have been reported in the English literature. Among these 30 cases of ICV, 19 cases were diagnosed by angiography, and 7 operated cases were diagnosed later as ileocecal vein deficit, hemangioma, and idiopathic in 1, 1, 5 cases, respectively. We report the case of a 24-year-old man who suffered from multiple episodes of hematochezia of varying degree at the age of 11 years. He had severe anemia with hemoglobin of 21 g/L. On colonoscopy, tortuously dilated submucosal vein and friable ulceration covered with dark necrotic tissues especially at the rectosigmoid region were seen from the rectum up to the distal descending colon. It initially appeared to be carcinoma with varices. Mesenteric angiographic study suggested a colonic hemangioma. Low anterior resection was done due to medically intractable and recurrent hematochezia. Other bowel and mesenteric vascular structures appeared normal. Microscopic examination revealed normal colonic mucosa with dilated veins throughout the submucosa and serosa without representing new vessel growth. Taken all of these findings together, the patient was diagnosed as ICV. His postoperative course was uneventful.