Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are grossly unremarkable , though assessment is somewhat limited due to patient rotation . The pulmonary vasculature is normal and the lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are demonstrated . Rightward curvature of the thoracic spine is noted .
    OUTPUT:
    
No acute cardiopulmonary abnormality .