Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post median sternotomy and CABG . A right - sided Port - A - Cath is seen , catheter terminating in the distal SVC / cavoatrial junction . There last relatively low lung volumes . Given this , no focal consolidation , pleural effusion , evidence of pneumothorax is seen . There is no overt pulmonary edema . The aorta is slightly tortuous . The cardiac silhouette is not enlarged .
    OUTPUT:
    
Low lung volumes without acute cardiopulmonary process . No overt pulmonary edema .