Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy . Right - sided Port - A - Cath is again seen without significant change in position , terminating at the cavoatrial junction . Again , there are low lung volumes and minimal bibasilar atelectasis . Ovoid calcification projecting over the left mediastinum is again seen . Subcentimeter left lower lung rounded calcification is stable and may represent a calcified granuloma . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . There is no overt pulmonary edema .
    OUTPUT:
    
No significant interval change .