Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a chest tube at the left lung base . Also again seen is extensive opacification of the left lung . Allowing for technical differences , the degree of residual aeration at the left lung is relatively similar . No pneumothorax is identified . As previously suggested , there is probable volume loss on the left , with persistent slight leftward shift of the cardiomediastinal silhouette . The right lung shows upper zone redistribution and mild vascular plethora as well as right base atelectasis . Vascular plethora may be slightly greater . No right - sided effusion .
    OUTPUT:
    
1 . Persistent opacification of the left lung , overall similar to ___ at 05 :54 2 . Mild vascular plethora , equivocally slightly greater , as seen in the right upper lung . 3 . Minimal opacity at the right base is probably similar allowing for technical differences . Question atelectasis , but attention to this area on followup films is requested to exclude developing pneumonic infiltrate .