Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal consolidation , pleural effusion or pneumothorax identified . Mild left medial basilar atelectasis , not significantly changed since the prior imaging . No pleural effusion or pneumothorax identified . The size of the cardiac silhouette is within normal limits . Calcification of the aortic arch is again noted . The previously identified pulmonary edema is much improved . There has been interval removal of the left internal jugular central venous catheter .
    OUTPUT:
    
No evidence of pneumonia or atelectasis .