Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior studies , a right - sided Port a cath with tip terminating in at the cavoatrial junction is new . Lung volumes are lower , causing a component of bronchovascular crowding . The left heart border is silhouetted , with a suspected left basilar opacity . Interstitial lung markings are more prominent .
    OUTPUT:
    
Silhouette sign of the left heart border and left basilar opacity may be due to aspiration , given the clinical setting .