Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes , but clear lungs . The cardiomediastinal hilar contours are unchanged . There is no pneumothorax or pleural effusion . Pleural surfaces are unremarkable . A thoracic vertebral body compression deformity is unchanged .
    OUTPUT:
    
No evidence of pneumonia .