Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left pleural drain is seen projected over the left hemithorax , unchanged . There is large left pleural effusion , minimally decreased from the prior study . Left lower lobe atelecatasis has improved . Again , lucency below the right hemidiaphragm is consistent with recent abdominal surgery . Opacity at the right base represents multiple lung nodules on right and right lymphadenopathy . Known mediastinal lymphadenopathy better seen on recent CT . There is no evidence of pneumothorax .
    OUTPUT:
    
Large left pleural effusion with multiple loculations is minimally decreased in size from the prior study .