Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear unchanged . Pleural thickening at the apex of the left hemithorax appears similar . A posterior basilar opacity has resolved . There is no definite pleural effusion or pneumothorax . Bony structures are unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .