Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lordotic positioning . The cardiac silhouette is mildly enlarged , though likely accentuated by lordotic positioning . There is mild prominence of the upper zone vessels , consistent with mild vascular congestion . No focal infiltrate or consolidation , large pleural effusion or pneumothorax detected .
    OUTPUT:
    
Possible mild enlargement of the cardiac silhouette . Mild prominence of the upper zone vessels , without overt CHF . No focal infiltrate detected to suggest aspiration pneumonitis .