Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Enteric tube tip is within distal stomach or proximal duodenum . Left PICC line tip in the upper SVC . Tracheostomy . Improved left basilar opacity . Interstitial prominence in bilateral lungs is similar , suggesting edema . Probable small left pleural effusion . No pneumothorax .
    OUTPUT:
    
Mild improvement in left basilar opacity since prior .