Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Within the limitations of technique , the cardiac , mediastinal and hilar contours are probably within normal limits . The lungs appear clear aside from minimal suspected right basilar atelectasis associated with a mildly elevated right hemidiaphragm . There is no pleural effusion or pneumothorax . No free air is identified .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .