Meckel's diverticulum.
D000328:Adult; D002828:Choristoma / Q000150:complications; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000150:complications; D008297:Male; D008467:Meckel Diverticulum / Q000150:complications* / Q000503:physiopathology / Q000601:surgery; D008875:Middle Aged