Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is opacification within the lower lung field visualized on the lateral , representing a lower lobe pneumonia . Pulmonary vasculature is normal . The heart is top - normal in size . No pleural effusion . No pneumothorax .
    OUTPUT:
    
Opacification within the lower lung field , representing a lower lobe pneumonia .