Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior study , left basilar consolidation may be due to volume loss , however superimposed pneumonia is not excluded , especially given the absence of a lateral view . The left PICC line tip is at the cavoatrial junction . Cardiomediastinal and hilar silhouettes are similar in appearance . Tracheostomy appears in place . Incidental note is made of spinal hardware and a right clavicular fracture , as seen on the initial trauma torso from ___ .
    OUTPUT:
    
1 . Left basilar consolidation may be due to volume loss , however superimposed pneumonia is not excluded , especially given the absence of a lateral view . 2 . No evidence of free subdiaphragmatic air on this single view .