Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate clear lungs bilaterally . No focal opacity convincing for pneumonia is identified . Cardiomediastinal and hilar contours are stable relative to examination dated ___ . There is no pneumothorax , pleural effusion , or evidence of pulmonary edema .
    OUTPUT:
    
No radiographic evidence of pneumonia .