Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable view of the chest shows a left PICC ending in the right atrium , it can be pulled back approximately 4 .5 - 5 .0 cm . There is increased opacification in the left midlung since prior . Appearance of right lower lobe abscesses and pleural effusions are stable . There is no pneumothorax . Cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
1 . Left PICC ends in the right atrium and can be pulled back approximately 4 .5 - 5 cm . No pneumothorax . 2 . Interval increase in left midlung opacity , which may represent developing infection .