Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right significant pleural effusion with atelectasis has improved since thoracocentesis and is now moderate . New Pigtail enters right chest wall inferiorly and ends in medial mid hemithorax . Left lung is unremarkable . Mediastinal and cardiac contours are normal . There is no pneumothorax . Small left pleural effusion is unchanged .
    OUTPUT:
    
1 . Right significant pleural effusion with atelectasis has improved and is now moderate after thoracocentesis . 2 . There is no pneumothorax .