This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal Radiology, Subject name: Radiology
[{'content': 'CT of gastric Volvulus shows - \nSelect and explain. \nA. Shoened twisted stomach, B. Enlarged twisted stomach, C. Normal twisted stomach, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Gastric volvulus: In X-ray - coffee bean sign (located in epigastric area) CT of gastric volvulus shows enlarged twisted stomach 2 mechanisms of gastric volvulus occurrence:', 'role': 'assistant'}]