Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of a left PICC line projects over the distal SVC . There is a new opacity in the right upper lung zone in the area of the previously described cavitary lesion . Otherwise the diffuse and prominent reticular markings are unchanged . No pleural effusion or pneumothorax identified . The size the cardiac silhouette is enlarged .
    OUTPUT:
    
New opacity in the right upper lung zone in the area of a previously described cavitary lesion likely reflects superimposed infection . Unchanged interstitial markings suggestive of pulmonary fibrosis .