Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post sternotomy and probably coronary artery bypass graft surgery . The heart appears mildly enlarged . Pulmonary vascularity is mildly prominent , suggesting mild vascular congestion . There is a small - to - moderate pleural effusion on the right , but decreased . Subpulmonic opacification of the left lung base is not well delineated but may indicate a small effusion and atelectasis . The bones appear demineralized . The right acromiohumeral interval is effaced .
    OUTPUT:
    
Right pleural effusion , somewhat decreased , and findings consistent with pulmonary vascular congestion . Although pneumonia at the one or both lung bases is difficult to exclude , findings are more suggestive of mild congestive heart failure than infection .