Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart is moderately enlarged . Additionally , bibasilar and retrocardiac airspace opacities are noted , and may represent pneumonia in the proper clinical setting . Streaky linear atelectasis versus scarring is noted along the lateral aspect of the mid right lung . Probable small bilateral pleural effusions are present . Sternotomy wires are well aligned . The patient is status post aortic valve replacement . Redemonstrated are surgical clips projecting over the right axilla .
    OUTPUT:
    
1 . Bibasilar pneumonia could be due to aspiration . 2 . Moderate cardiomegalywithout pulmonary edema with probable small bilateral pleural effusions .