Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . Lower lung volumes seen on the current exam . There are bibasilar opacities , potentially due to atelectasis given lower lung volumes ; however , component of infection is not completely excluded . There is no effusion or evidence of pulmonary vascular congestion . Cardiac silhouette is stable given differences in technique . Stable calcified nodule projects over the right mid lung . There is diffuse osteopenia . Osseous and soft tissue structures are otherwise grossly unremarkable .
    OUTPUT:
    
Lower lung volumes on current exam making bibasilar opacities potentially due to atelectasis ; however , infection is not excluded . Clinical correlation suggested .