title: Idiopathic myointimal hyperplasia of mesenteric veins: a rare mimic of idiopathic inflammatory bowel disease.
abstract: Idiopathic myointimal hyperplasia of mesenteric veins (IMHMV) is a rare and poorly understood disease that occurs in the rectosigmoid colon of predominantly young, previously healthy male patients. IMHMV typically requires segmental resection due to complications after a relatively protracted clinical course. This disease presents a challenging diagnostic dilemma for the clinician because it is initially often confused with chronic idiopathic inflammatory bowel disease. We report a case of IMHMV, illustrate endoscopic and histopathologic features, and review key characteristics of this rare entity.
authors.affiliation: Department of Internal Medicine, University of Vermont College of Medicine, Burlington, VT 05405, USA.
authors.forename: Patricia C
authors.initials: PC
authors.lastname: Kao
authors.forename: James A
authors.initials: JA
authors.lastname: Vecchio
authors.forename: Neil H
authors.initials: NH
authors.lastname: Hyman
authors.forename: A Brian
authors.initials: AB
authors.lastname: West
authors.forename: Hagen
authors.initials: H
authors.lastname: Blaszyk
mesh_terms: D000328:Adult; D001706:Biopsy; D017091:Colitis, Ischemic / Q000209:etiology / Q000473:pathology*; D012809:Colon, Sigmoid / Q000098:blood supply*; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D006965:Hyperplasia; D015212:Inflammatory Bowel Diseases / Q000175:diagnosis*; D008297:Male; D008642:Mesenteric Veins / Q000473:pathology*; D012812:Sigmoidoscopy; D017539:Tunica Intima / Q000473:pathology*