Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiograph demonstrates right upper lobe airspace opacities suggestive of pneumonia . Cardiomediastinal and hilar contours are stable in appearance and within normal limits . Obscuration of the left heart border is less conspicuous . There is no pleural effusion or pneumothorax . No acute osseous abnormalities detected .
    OUTPUT:
    
Airspace opacities within the right upper lobe suggestive of pneumonia .