Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post right upper lobectomy . The previously noted right pneumothorax has resolved . Trace right pleural effusion is present . The right chest wall emphysema has improved . Small lucencies overlying the right lateral chest persist , and likely represent residual chest wall emphysema from prior chest tube placement . The left lung is well expanded and clear . The cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
Improved right pneumothorax and chest wall emphysema .