Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large bilateral pleural effusions , greater on the left compared to the right , with adjacent bilateral atelectasis . Interval placement of a left pigtail catheter which appears to be in the area of the left pleural effusion . Apparent mediastinal widening is secondary to lack of full inspiration . The heart size can not be fully assessed . There is no pneumothorax or pulmonary edema . No acute osseous abnormality .
    OUTPUT:
    
1 . Large left pleural effusion , now being drained by a left pigtail catheter . 2 . Moderate right pleural effusion . 3 . Bibasilar atelectasis .