Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly . There is mild pulmonary vascular congestion without overt edema , effusion , or consolidation . Osseous structures are unremarkable . There is no definite focal consolidation .
    OUTPUT:
    
Moderate enlargement of the cardiac silhouette potentially due to underlying cardiac enlargement although pericardial effusion would be possible . Vascular congestion without focal consolidation .