Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left small pleural effusion has improved since ___ with compressive atelectasis . There is no new consolidation . The right lung is unremarkable . The mediastinal and cardiac contours are within normal limits . There is no pneumothorax .
    OUTPUT:
    
Small left pleural effusion is improved since ___ . There is no pneumonia .