Meckel's diverticulum in an adult.
D000328:Adult; D004381:Duodenal Ulcer / Q000150:complications; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications; D008297:Male; D008467:Meckel Diverticulum / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D010438:Peptic Ulcer Hemorrhage / Q000150:complications