Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There there are bilateral lower lobe airspace opacities . The lungs are otherwise clear . The hilar and cardiomediastinal contours are normal . There is no pneumothorax . There is no pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
Findings concerning for bilateral lower lobe pneumonia .