Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . The heart size remains mildly enlarged , but accentuated by the presence of low lung volumes . Mediastinal and hilar contours are unchanged and within normal limits . There is no pulmonary edema . Streaky bibasilar opacities likely reflect atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . A clips is seen projecting over the left mediastinum . No acute osseous abnormalities identified .
    OUTPUT:
    
Low lung volumes with mild bibasilar atelectasis .