<prompt> The following are radiological features of sigmoid volvulus exceptInverted U shaped bowel loopLiver overlap signBird of preyCupola sign  <response>: Radiological signs of sigmoid volvulus Liver overlap sign, Flank overlap sign, D10 overlap sign, Coffee bean sign, Bird - of - prey sign, Inverted UV sign, Omega sign, Bent inner tube Bent tyre tube. 