Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . Pleural surfaces are normal without pleural effusion or pneumothorax . Heart size , mediastinal contour and hila are normal . No new focal opacity . Cervical fixation plate is again noted and not optimally assessed on this study .
    OUTPUT:
    
No radiographic evidence of pneumonia .