Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are within normal limits . The pulmonary vascularity is normal . Lungs are clear . No pleural effusion or pneumothorax is present . No acute osseous abnormalities are detected . Partially imaged is a right humeral head prosthesis .
    OUTPUT:
    
No acute cardiopulmonary abnormality .