Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unremarkable with atherosclerotic calcification of the aortic arch again noted . A fudicial seed is again seen within a posterior left lower lobe lesion , compatible with known malignancy status post CyberKnife therapy . Minimal streaky bibasilar opacities likely reflect atelectasis , though infection is difficult to exclude . There is no new focal consolidation , pleural effusion or pneumothorax . No pulmonary vascular congestion is present . Multiple clips are again seen within the upper abdomen . There are no acute osseous abnormalities .
    OUTPUT:
    
Left lower lobe lesion containing a fudicial marker , not significantly changed from the prior study . Probable bibasilar atelectasis though infection is difficult to exclude .