This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Radiological features of left ventricular hea failure are all, except- 
Select and explain. 
A. KerlyB lines, B. Cardiomegaly, C. Oligemic lung fields, D. peribronchial cuffing
C: Oligemic lung fields
Answer: C: Oligemic lung fields 
Explanation: In chest radiography, the Westermark sign is a sign that represents a focus of oligemia (hypovolemia) (leading to collapse of vessel) seen distal to a pulmonary embolism (PE). While the chest x-ray is normal in the majority of PE cases, the Westermark sign is seen in 2% of patients. Ref Davidson 23rd edition pg 460