Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Lungs are clear . The pulmonary vascularity is normal . No pleural effusion or pneumothorax is demonstrated . Small focus of calcification adjacent to the left humeral head may reflect calcific tendinopathy .
    OUTPUT:
    
No acute cardiopulmonary abnormality .