Volvulus of the sigmoid colon.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D012809:Colon, Sigmoid / Q000601:surgery*; D003108:Colonic Diseases / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007415:Intestinal Obstruction / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011351:Proctoscopy; D012008:Recurrence