title: Bifid-appendix volvulus.
mesh_terms: D001065:Appendix / Q000002:abnormalities* / Q000601:surgery; D002648:Child; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications* / Q000601:surgery; D007416:Intestinal Perforation / Q000209:etiology* / Q000601:surgery