What is the differential diagnosis of an enlarged cardiac shadow on CXR?

1. Congestion, that is, CHF or fluid overload
2. Cardiomyopathy (ischemic, idiopathic, or valvular)
3. Intracardiac shunt
4. Pericardial effusion
5. Valvular disease
6. Massive mediastinal mass

MC FIIVE
Mass
Cardiomyopathy
Failure
Intracardiac shunt
Valvular disease
Effusion, pericardial