Adenocarcinoma of a Meckel's diverticulum.
D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007414:Intestinal Neoplasms / Q000473:pathology* / Q000601:surgery; D008297:Male; D008467:Meckel Diverticulum / Q000473:pathology*; D008875:Middle Aged