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: Pathology
Plethoric lung fields are seen in the all of the following except: September 2009 
Select and explain. 
A. Ebstein anomaly, B. VSD, C. Total anomalous pulmonary venous connection, D. ASD
A: Ebstein anomaly
Answer: A: Ebstein anomaly 
Explanation: Ans. A: Ebstein anomalyChest radiographs can reveal the following in ebstein's anomaly:Normal findingsCardiomegalySmall aoic root and main pulmonary aery shadowDecreased pulmonary vasculatureLarge right atrium