Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate - sized right - sided pleural effusion , with portions of it loculated laterally . Fluid is also seen layering along the major and minor fissures . There is no left pleural effusion . Focal opacification at the right base is likely associated atelectasis . There is no pulmonary edema or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Moderate - sized partially loculated right pleural effusion with associated atelectasis .