Coloscopic inversion.
Direct visualization of the inner anal orifice by means of coloscopic inversion in the ampulla recti eliminates one of the last "blind zones" in digestive endoscopy.
D001005:Anus Neoplasms / Q000175:diagnosis; D006484:Hemorrhoids / Q000175:diagnosis*; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis; D012004:Rectal Neoplasms / Q000175:diagnosis*; D012812:Sigmoidoscopy / Q000379:methods*