Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . There is a patchy opacity in the right lung base concerning for infectious process . Cardiomediastinal silhouette is unremarkable . There is no pneumothorax or pleural effusion . Visualized osseous structures are unremarkable .
    OUTPUT:
    
Patchy opacity in the right lung base concerning for pneumonia .