Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are stable . There is unchanged pleural thickening at each lung apex , greater on the right than left . There is no pleural effusion or pneumothorax . There are similar coarse interstitial markings , but no definite acute findings .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .