Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . Mediastinal and hilar contours are unchanged and within normal limits . Pulmonary vasculature is normal . Linear opacities in the lung bases are compatible with subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is seen . No acute osseous abnormalities are identified .
    OUTPUT:
    
No acute cardiopulmonary process .