Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided Port - A - Cath terminates immediately above the cavoatrial junction . The cardiac , mediastinal and hilar contours appear stable . There is a new large lobular pleural - based opacity occupying the left mid to lower hemithorax suggesting an extensive loculated pleural effusion . There is a small free - flowing pleural effusion on the right although the right pleural effusion has decreased . Elsewhere , the lungs remain clear . Surgical clips project over the right upper quadrant .
    OUTPUT:
    
Findings suggest extensive new loculated pleural effusion in the left hemithorax . If needed clinically , evaluation with chest CT , preferably with intravenous contrast if feasible , could be helpful to assess further .