Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval placement of right pleural catheter with improvement of right hydrothorax . Moderate right basilar atelectasis is improved . However , right hemidiaphragm elevation persists . The left lung appears clear . The heart size is unchanged . No pneumothorax or pulmonary edema .
    OUTPUT:
    
1 . Interval placement of right pleural catheter with improvement of right hydrothorax and associated atelectasis . No pneumothorax