Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate persistent moderate - sized left pleural effusion with adjacent atelectasis . The right lung is clear . In comparison with the study dated ___ , there is little overall change . There is no pneumothorax . A chest tube projects over the left hemithorax .
    OUTPUT:
    
Persistent moderate - sized left pleural effusion with adjacent atelectasis , no significant change .