Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low and exaggerate heart size , which is likely mildly enlarged . There is no focal consolidation or pneumothorax . Trace bilateral pleural effusions . There is mild central vascular congestion without overt pulmonary edema . Mediastinal and hilar contours are stable .
    OUTPUT:
    
1 . Low lung volumes exaggerate heart size , which is mildly enlarged . Given the absence of interstitial edema , this could represent cardiomyopathy or pericardial effusion . Recommend correlation with physical exam findings . 2 . Trace bilateral pleural effusions .