Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post aortic valve replacement . Mitral annular calcifications are unchanged . The heart is at the upper limits of normal size . The mediastinal and hilar contours appear unchanged . There is mild interstitial abnormality , suggesting vascular congestion . Streaky left basilar opacification with new mild relative elevation of the left hemidiaphragm is most suggestive of atelectasis . The lateral view depicts an increased small - to - moderate pleural effusion on the right since the prior examination , but quite similar to before on the left . Surgical clips project over the right axilla and epigastric region .
    OUTPUT:
    
Mild interstitial abnormality suggesting pulmonary congestion . Increased volume loss at the left lung base . Increased right - sided pleural effusion .