Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is mildly tortuous with mild atherosclerotic calcifications noted . The pulmonary vasculature is normal and the hilar contours are unremarkable . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is visualized . There are degenerative changes noted within the left acromioclavicular joint .
    OUTPUT:
    
No acute cardiopulmonary process .