title: Painless chronic sigmoid volvulus.
mesh_terms: D002908:Chronic Disease; D012809:Colon, Sigmoid; D003248:Constipation / Q000150:complications / Q000235:genetics; D006801:Humans; D007415:Intestinal Obstruction / Q000150:complications*; D008297:Male; D008531:Megacolon / Q000150:complications; D008875:Middle Aged; D010146:Pain