Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been significant improvement of moderate pleural effusion on the right side post - thoracocentesis ; residual pleural effusion is small and minimal . There is no pneumothorax . Left small pleural effusion has slightly increased . Moderate cardiomegaly is stable . Right - sided hemodialysis catheter is unchanged .
    OUTPUT:
    
Significant improvement of right pleural effusion that is now minimal after thoracocentesis . There is no pneumothorax .