Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two right - sided chest tubes are present , similar in configuration to the prior film . The appearance of the right lung is similar , allowing for technical differences . Again seen is a large right effusion , with underlying collapse and / or consolidation . No pneumothorax is detected . The patient is status post sternotomy , with marked enlargement of the cardiomediastinal silhouette . As before , the right - sided heart border is obscured by the opacities at the right lung base , but no significant interval change is detected in cardiomediastinal size or morphology . The degree of retrocardiac opacity has improved . The left lung is otherwise grossly clear . There is minimal blunting of left costophrenic angle , unchanged . On the left , they areas upper zone redistribution , but no overt CHF . Vascular plethora in the right upper zone is likely secondary to compression of the right lung by the effusion .
    OUTPUT:
    
Large right effusion with underlying collapse and / or consolidation . This together with other findings in the chest are essentially unchanged compared with ___ . Possible slight interval improvement in left lower lobe collapse and / or consolidation . No pneumothorax detected .