Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is normal . There is no focal consolidation , pleural effusion or pneumothorax present . Subsegmental atelectasis in the lingula is detected . There are mild to moderate degenerative changes noted in the thoracic spine .
    OUTPUT:
    
No radiographic evidence for pneumonia .