Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . The heart size is mildly enlarged . Mediastinal and hilar contours are normal . Pulmonary vascularity is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . No acute osseous abnormalities are detected . Soft tissue calcification noted within the right proximal arm is possibly dystrophic , and not completely assessed on this exam .
    OUTPUT:
    
No acute cardiopulmonary process .