Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is at the upper limits of normal and unchanged . The pulmonary vasculature is normal . The lungs are hyperinflated as before with a background of emphysema . There is focal scarring and nodularity in the left upper lobe , better assessed on the prior CT . Post-radiation fibrosis along the left mediastinal and hilar contour is redemonstrated . No new focal consolidation . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . There are degenerative changes of visualized spine . Cholecystectomy clips in the right upper quadrant .
    OUTPUT:
    
No new focal consolidation . Unchanged post-radiation fibrosis in the left mediastinal and hilar contour . Focal scarring and nodularity in the left upper lobe is better assessed on the prior CT .