Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . Mediastinal ca n't hilar contours are unremarkable . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion or pneumothorax is present . No acute osseous abnormalities present .
    OUTPUT:
    
No acute cardiopulmonary abnormality .