Volvulus of the sigmoid colon.
D000328:Adult; D000367:Age Factors; D000368:Aged; D002675:Child, Preschool; D003082:Colectomy; D012809:Colon, Sigmoid; D003108:Colonic Diseases; D005260:Female; D005734:Gangrene / Q000150:complications; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications / Q000175:diagnosis / Q000209:etiology / Q000401:mortality / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D012737:Sex Factors; D012812:Sigmoidoscopy