Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Low lung volumes result in bronchovascular crowding , although aeration and persistent bibasilar atelectasis are improved from ___ . Right chest wall air has resolved . A right intravenous catheter ends in the lower SVC with a port needle in place . There may be a small right pleural effusion . No pneumothorax .
    OUTPUT:
    
Improved lung aeration with persistent bibasilar atelectasis . Possible small right effusion .