Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate persistent left pleural effusion with associated basilar atelectasis . Otherwise , no focal consolidation , pulmonary edema , or pneumothorax is identified . There is no effusion on the right . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
Unchanged moderate left pleural effusion with associated atelectasis . No acute process .