Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP portable view of the chest was obtained . No evidence of free air is seen beneath the diaphragms . The cardiomediastinal silhouette remains enlarged . Lung volumes are relatively low and there are increased interstitial markings bilaterally suggesting mild - to - moderate vascular congestion / edema . Blunting of the costophrenic angles is seen , which may relate to overlying soft tissue , although small pleural effusions may be present .
    OUTPUT:
    
Moderate - to - marked enlargement of the cardiac silhouette . Blunting of the costophrenic angles may be seen in small bilateral pleural effusions . Prominence of the vasculature suggests at least moderate vascular congestion . No evidence of free air beneath the diaphragms .