Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate to large left pleural effusion , increased in size since the prior study . There is likely associated atelectasis . Blunting of the posterior right costophrenic angle suggests a small right pleural effusion . Pulmonary lesions , including dominant left upper lobe mass were better assessed on CT . The cardiac and mediastinal silhouettes are grossly stable in size . No pneumothorax is seen .
    OUTPUT:
    
Moderate to large left pleural effusion and small right pleural effusion , with associated atelectasis . At least the left pleural effusion appears increased in size as compared to the prior study . Previously seen pulmonary lesions better assessed on CT .