Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Better characterized on same day CTA chest , there is a large left pleural effusion which appears to be layering . The left hemidiaphragm is displaced inferiorly secondary to space occupying pleural effusion . There is probably a small pericardial effusion . A left upper lobe mass is better appreciated on the CT and obscures the aortic knob . The right lung is clear with no focal consolidation . There is no right - sided pleural effusion . There is no pneumothorax . Heart border is obscured .
    OUTPUT:
    
Large left sided pleural effusion which appears to be layering and better characterized on same - day CTA chest .