Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is an placement of a left pigtail catheter . The left pleural effusion has significantly decreased in size compared to the prior study now small in size . There is a small right pleural effusion . There is no pneumothorax . The cardiomediastinal silhouette is stable . Imaged upper abdomen is unremarkable . Again seen is chronically dislocated the left humeral head .
    OUTPUT:
    
Interval decrease of left pleural effusion status post chest tube placement . No pneumothorax . This study was reviewed with Dr . ___ , ___ radiologist .