Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . The cardiac silhouette is top normal to mildly enlarged . There is mild central pulmonary vascular congestion . No definite focal consolidation is seen . There is no evidence of a large pleural effusion although a small left pleural effusion would be difficult to exclude due to overlying soft tissue . No pneumothorax is seen .
    OUTPUT:
    
Top normal to mildly enlargement of the cardiac silhouette and mild pulmonary vascular congestion .