Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large loculated left pleural effusion has slightly increased in size since yesterday 's exam . There is now an increased component layering laterally . There is significant hazy opacity over the aerated left upper lobe . Mild pulmonary vascular congestion is unchanged . A right internal jugular catheter remains in the low SVC . Cardiomegaly is unchanged . A left pigtail catheter is in stable position .
    OUTPUT:
    
Slight interval increase in size of large left pleural effusion .