Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . The lung volumes are low . There is no definite pleural effusion or pneumothorax . Patchy opacity at the left lung base suggests minor atelectasis . Otherwise , the lung fields appear clear . There is prior fracture involving the left mid clavicle . Several mid to lower thoracic vertebral bodies show probably chronic mild loss in height .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .