Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits . Ill - defined increased opacity at the right lung base seen best on frontal view projecting over the cardiac silhouette on the lateral is concerning for an infectious process . Lungs are otherwise clear . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Focal ill - defined opacity in the right middle lobe compatible with pneumonia in the appropriate clinical setting .