Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs of ___ , again seen is a very large left - sided pleural effusion , with slight improvement in left lower lobe atelectasis . There is atelectasis at the right lung base , with at least a moderate right pleural effusion . Cardiomegaly and edema are indicative of increased central venous pressure , volume , or both . ET tube and right Swan - Ganz catheter are in standard position . An NG tube passes below the level of the diaphragm and out of view .
    OUTPUT:
    
Persistent very large left - sided pleural fusion , at least moderate right pleural effusion , with slight improvement in left basilar atelectasis . Increased central venous pressure and / or volume .