Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a focal opacity best seen on the lateral view , potentially localizing to the right based on the frontal view . The lungs are otherwise clear . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Lower lobe opacity , which may represent pneumonia in the right clinical setting .