Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval insertion of a left - sided pigtail catheter . The remaining support devices are stable . Complete resolution of the left - sided pleural effusion . Elevation of the right hemidiaphragm due to subcapsular hepatic collection with associated right - sided pleural effusion and atelectasis have slightly improved . No pneumothorax . Mild to moderate cardiomegaly is stable .
    OUTPUT:
    
Interval insertion of left - sided pigtail catheter was successful drainage of the left pleural effusion . Improvement of moderate right pleural effusion and right upper lobe atelectasis .