title: Occult diverticulitis, a cause of retroperitoneal fibrosis.
abstract: A case is reported in which extensive mesocolonic and retroperitoneal granulomatous and fibrotic disease were apparently due to occult diverticulitis. The patient later had a good result from aggressive but limited operation for obstructions of the ureter and colon.
mesh_terms: D004239:Diverticulitis, Colonic / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D012185:Retroperitoneal Fibrosis / Q000209:etiology*