This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Radiology
[{'content': 'Which is not seen in Hea failure? \nSelect and explain. \nA. Kerley B lines, B. Cardiomegaly, C. Oligemia, D. Kerley A Lines', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Oligemia is not seen in Hea Failure Chest x-ray in hea failure may show : Pleural effusions, Cardiomegaly Kerley A and B lines Perhilar haze Cephalization of pulmonary vasculature Peribronchial cuffing Lymphatic engorgement causes septal thickenings which is seen as Kerley A and Kerley B lines on CXR. CXR of Hea Failure', 'role': 'assistant'}]