Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation to suggest pneumonia . There is no pleural effusion or pneumothorax . Hilar and cardiomediastinal contours are normal . There is no pulmonary vascular congestion or edema . Mild degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
No evidence of pneumonia .