Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left costophrenic angle opacity is most likely consistent with a prominent epicardial fat pad as seen on ___ CT . There is mild bibasilar atelectasis with low lung volumes . No new consolidation , effusion , or pneumothorax . The heart size is mildly enlarged .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis . Left costophrenic angle opacity is likely consistent with a previously seen prominent epicardial fat pad .