Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left subclavian PICC line is visualized with the tip at upper SVC . Tracheostomy tube is visualized in position . An enteric tube is visualized with tip traversing through the stomach but out of the field of view . Small left pleural effusion as well as a tiny right pleural effusion , stable in comparison to prior study . There is , however , improved aeration of bilateral lower lobes with less atelectasis . Destructive lung parenchyma and bronchiectatic changes in the left upper lobe appear stable .
    OUTPUT:
    
Mild improvement in bilateral lower lung aeration . Small bilateral pleural effusions persist , left greater than right .