Gastric heterotopia in the vermiform appendix.
D000015:Abnormalities, Multiple / Q000601:surgery*; D001062:Appendectomy; D001065:Appendix / Q000002:abnormalities*; D002675:Child, Preschool; D005753:Gastric Mucosa / Q000002:abnormalities*; D006801:Humans; D007415:Intestinal Obstruction / Q000601:surgery; D008297:Male; D008467:Meckel Diverticulum / Q000601:surgery