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: Medicine
[{'content': 'Vanishing tumor is seen in \nSelect and explain. \nA. Liver, B. Lung, C. Bone, D. Hea', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer- B. LungAccumulation of fluid in the interlobar spaces of the lung (as a result of CHF) appears as a neoplasm on a radiograph.It is called as Phantom tumor or pseudotumor or vanishing tumor.', 'role': 'assistant'}]