Question

Pulmonary plethora is seen with all except:

• A. TGS
• B. Ebstein anomalies
• C. Hypoplastic left heart syndrome
• D. Double outlet right ventricle

Answer 1

The Correct Option is B

To solve the question of which condition does not present with pulmonary plethora, we need to understand what pulmonary plethora is—a condition characterized by increased blood flow to the lungs, which can be due to left-to-right cardiac shunts or other cardiac anomalies.

• Transposition of the Great Arteries (TGS): This condition is associated with pulmonary plethora due to mixing of blood and potential resultant shunting, especially if there are additional cardiac defects like VSDs (Ventricular Septal Defects).
• Ebstein Anomalies: This condition involves a malformed tricuspid valve, leading to tricuspid regurgitation, enlarged right atrium, and often decreased pulmonary blood flow, not increased. Thus, pulmonary plethora is not characteristic of this anomaly.
• Hypoplastic Left Heart Syndrome: In this condition, the left side of the heart is underdeveloped, resulting in increased pressure and blood flow to the lungs, therefore causing pulmonary plethora.
• Double Outlet Right Ventricle: This cardiac defect can lead to increased lung blood flow if accompanied by a VSD directing blood towards the pulmonary artery, hence pulmonary plethora may be observed.

Therefore, pulmonary plethora is seen in all conditions mentioned except Ebstein Anomalies, as this condition results in decreased lung blood flow rather than an increase.