Rectal calculus.
D000368:Aged; D002137:Calculi / Q000000981:diagnostic imaging*; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000209:etiology; D012002:Rectal Diseases / Q000000981:diagnostic imaging*; D014567:Urography