Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to previous exam from ___ . Tracheostomy tube is again noted . Left PICC tip is not clearly delineated on the current exam . Again there is mild pulmonary vascular congestion . Streaky opacities at the lung bases suggestive of atelectasis ; however infection can not be excluded . Cardiomediastinal silhouette is stable as are the osseous and soft tissue structures .
    OUTPUT:
    
No significant interval change since prior . Pulmonary vascular congestion . Bibasilar opacities potentially due to atelectasis ; however , infection is not excluded .