Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Port - A - Cath is again seen overlying the left chest wall with catheter tip extending to the level of the low SVC . There is near - complete opacification of the right hemithorax which is concerning for large pleural effusion . Slight shift of midline structures to the left is evident . There is minimal residual aeration within the right mid lung . The left lung remains clear . Heart size can not be accurately assessed . Bony structures are unchanged .
    OUTPUT:
    
Near - complete opacification of the right hemithorax is most compatible with large right pleural effusion .