Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change . Lungs are well - expanded and clear . No focal consolidation , effusion , edema , or pneumothorax . The heart is normal in size . The mediastinum is not widened . S - shaped curvature of the thoracolumbar spine is similar to the prior exam . No acute osseous abnormality .
    OUTPUT:
    
Normal chest radiograph with no evidence of pneumonia .