Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates airspace opacities which project over the left lower lung field and correlate to opacities within the left upper lobe on the lateral chest radiograph worrisome for infectious process . The right lung is clear . Cardiomediastinal and hilar contours are within normal limits . There is no pleural effusion or pneumothorax . There is no air under the right hemidiaphragm .
    OUTPUT:
    
Left upper lobe airspace opacities worrisome for pneumonia .