Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a left - sided Port - A - Cath . Low lung volumes persist and there is persistent elevation of the right hemidiaphragm . Since the prior study , there has been increase in left perihilar and lower lobe opacities worrisome for pneumonia . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Left perihilar and left base opacities new / increased from the prior study , worrisome for pneumonia .