Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of the cardiac silhouette is unchanged . Transcatheter aortic valve replacement is re- demonstrated , in unchanged position . Mediastinal and hilar contours are similar . Opacification of the left upper lobe with overlying clips is similar compared to the previous studies , better assessed on the prior CT . Patchy atelectasis is noted in the left lower lobe . No new focal consolidation , pleural effusion or pneumothorax is present . Pulmonary vasculature is not engorged . Degenerative changes of both glenohumeral and acromioclavicular joints and within the thoracic spine are unchanged . Clips are also noted projecting over left upper quadrant of the abdomen .
    OUTPUT:
    
Unchanged left upper lobe opacity , previously assessed on prior CT . Patchy left basilar atelectasis .