title: Submucosal colonic edema--urticaria of the colon.
abstract: Radiographically, colonic urticaria presents a non-specific pattern of submucosal edema. Previously unreported diverticulitis with colonic distention resulting in the flat, polygonal, mosaic pattern typical of this entity is described.
mesh_terms: D003108:Colonic Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*; D004239:Diverticulitis, Colonic / Q000150:complications; D004487:Edema / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014581:Urticaria / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*