Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral upright chest radiograph demonstrate clear lungs with no focal consolidation concerning for pneumonia . Cardiomediastinal and hilar contours are stable when compared to prior study dated ___ , within normal limits . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No convincing consolidation concerning for pneumonia .