This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
The following are radiological features of sigmoid volvulus except – 
Select and explain. 
A. Inverted U shaped bowel loop, B. Liver overlap sign, C. Bird of prey, D. Cupola sign
D: Cupola sign
Answer: D: Cupola sign 
Explanation: Radiological signs of sigmoid volvulus Liver overlap sign, Flank overlap sign, D10 overlap sign, Coffee bean sign, Bird - of - prey sign, Inverted U/V sign, Omega sign, Bent inner tube / Bent tyre tube.