Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Unchanged mild cardiomegaly . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Diffuse prominent interstitial markings appear unchanged . Lungs are otherwise clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . Again seen are mild - to - moderate degenerative changes in the thoracic spine and remote right rib fractures . No subdiaphragmatic free air is present
    OUTPUT:
    
No focal consolidation to indicate pneumonia .