Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate to large right pleural effusion appears increased in size compared to the prior exam . There is associated right basilar atelectasis . Mild leftward shift of mediastinal structures appears relatively unchanged . Heart size is likely normal . There is no pulmonary vascular congestion . Left lung is clear . There are no acute osseous abnormalities . A pigtail catheter is noted projecting over the right lung base .
    OUTPUT:
    
Interval increase in size of the moderate to large right pleural effusion with associated right basilar compressive atelectasis .