Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The mediastinal and hilar contours are within normal limits . The pulmonary vasculature is not engorged . Lungs are hyperinflated . Previously noted area of ill - defined opacification in the lingula appears somewhat improved since the prior exam . No new focal consolidation , pleural effusion or pneumothorax is seen . Moderate degenerative changes are seen in the thoracic spine . No acute osseous abnormalities detected .
    OUTPUT:
    
Improving ill - defined lingular opacity compatible with improving pneumonia . No new focal consolidation .