Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle right greater than left bibasilar opacities are seen which could be due to atelectasis , aspiration , infection not excluded . Biapical pleural thickening is again seen . No pleural effusion or pneumothorax . The cardiac silhouette is top - normal to mildly enlarged . Mediastinal contours are stable . A catheter projecting over the right hemi thorax extending into the abdomen with with VP shunt .
    OUTPUT:
    
Subtle right greater than left bibasilar opacities are seen which could be due to atelectasis , aspiration , infection not excluded .