Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . Pleural thickening with adjacent opacity in the right lung have decreased . Retrocardiac atelectasis have improved . There are no new lung abnormalities . Patient is status post AVR . There is no pneumothorax or pleural effusion . The osseous structures are unremarkable
    OUTPUT:
    
No acute cardiopulmonary abnormalities . improved pleural abnormality and adjacent opacities in the right mid-lung .