Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and aortic valve replacement . Heart size is mildly enlarged but unchanged . The aorta remains tortuous . The hilar contours are normal , and there is no pulmonary vascular congestion . Except for a granuloma within the left upper lobe , the lungs are essentially clear . Previously noted small bilateral pleural effusions have nearly resolved with only residual fluid noted on the left . There is no pneumothorax . Mild degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Near - complete resolution of the previously noted small pleural effusions , with only a trace amount of pleural fluid seen on the left . No acute cardiopulmonary abnormality otherwise identified .