Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left - sided PICC line , with tip projecting at the mid SVC . The tracheostomy tube appears unchanged in position . Lung volumes remain low , with persistent mild cardiomegaly . Crowding of bronchovascular structures with pulmonary vascular congestion is again noted . Patchy opacities in the bilateral lung bases may reflect areas of atelectasis , aspiration , or infection . No larger pleural effusions .
    OUTPUT:
    
1 . Left - sided PICC tip projects in the mid SVC . 2 . Persistent pulmonary vascular congestion . 3 . Persistent bibasilar opacities . As on the prior study , these are likely areas of atelectasis . However , superimposed aspiration or infection is possible .