Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Left PICC is seen with tip in the upper SVC . Right IJ line tip is likely within the right atrium and should be withdrawn for optimal positioning . Low lung volumes again seen . Streaky bibasilar opacities may be due to atelectasis , although infection is entirely possible . The left basilar opacity on prior has improved .
    OUTPUT:
    
Low lung volumes with bibasilar opacities , potentially atelectasis although infection is also possible . Right IJ line with tip in the right atrium and should be withdrawn . No pneumothorax .