Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is moderately to markedly enlarged . Mediastinal contours are unremarkable . No focal consolidation is seen . There is no large pleural effusion or pneumothorax . Possible minimal central pulmonary vascular engorgement without overt pulmonary edema . No pneumothorax is seen .
    OUTPUT:
    
Enlarged cardiac silhouette , underlying cardiomyopathy or pericardial effusion not excluded . Possible minimal central pulmonary vascular engorgement without overt pulmonary edema .