Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Scarring within the lung apices is unchanged . Minimal subsegmental atelectasis noted in the lung bases . Lungs are otherwise clear and the pulmonary vascularity is normal . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities present .
    OUTPUT:
    
No acute cardiopulmonary process .