title: Colovesical fistula secondary to foreign-body perforation of the sigmoid colon.
mesh_terms: D000368:Aged; D012809:Colon, Sigmoid; D003108:Colonic Diseases / Q000209:etiology*; D005260:Female; D005547:Foreign Bodies / Q000150:complications*; D006801:Humans; D007412:Intestinal Fistula / Q000209:etiology*; D007416:Intestinal Perforation / Q000150:complications*; D001747:Urinary Bladder Fistula / Q000209:etiology*