Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited by patient rotation and positioning . Heart size is mildly enlarged with a left ventricular predominance . The aorta is diffusely calcified . Mediastinal and hilar contours are grossly unchanged . Pulmonary vasculature is not engorged . Patchy left basilar opacity may reflect atelectasis though infection is not excluded in the correct clinical setting . No pleural effusion or pneumothorax is present . Calcification projecting over the to right apex is unchanged . Extensive degenerative changes are again demonstrated in the right shoulder .
    OUTPUT:
    
Limited study . Left basilar patchy opacity , likely atelectasis , but infection is not excluded in the correct clinical setting .