Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Median sternotomy wires are intact . Prosthetic aortic valve appears intact . Pulmonary artery catheter is in unchanged position . Left chest tube is in unchanged position with its tip projecting just below the left apex . Stable , mild cardiomegaly likely reflects the known pericardial effusion . The mediastinal and hilar contours are unchanged . Stable , probable , small right pleural effusion . Interval decrease in moderate left pleural effusion and adjacent relaxation atelectasis . Unchanged , tiny left apical pneumothorax . There is no evidence of right pneumothorax . Pulmonary vasculature is normal . Unchanged , mild to moderate right basilar atelectasis .
    OUTPUT:
    
1 . Unchanged , tiny left apical pneumothorax . 2 . Interval decrease in moderate left pleural effusion and adjacent atelectasis .