Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC line tip in the low SVC . Additional catheter projected over left chest , presumed VP shunt . Shallow inspiration . Left basilar opacities , new since prior , may represent atelectasis , consider pneumonitis in the appropriate clinical setting . Right lung is clear . Normal heart size , pulmonary vascularity . No pneumothorax .
    OUTPUT:
    
Left basilar opacity , may represent atelectasis , consider pneumonitis if clinically appropriate .