Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours are unremarkable . There is probably a trace pleural effusion on the left . A patchy opacity projecting over the right upper lobe suggests pneumonia . Likewise , pneumonia may involve the left lower lung , but less striking .
    OUTPUT:
    
Findings most consistent with pneumonia . Short - term followup radiographs are suggested as well as correlation with clinical presentation .