Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are improved compared to the prior study . There is also interval improvement of patchy infiltration at the right base . The lungs are otherwise clear . The cardiomediastinal and hilar silhouettes are normal , and there is no pleural effusion or pneumothorax .
    OUTPUT:
    
Improved lung volumes and improved right base atelectasis .