Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a vague opacity projecting over the right middle lobe on the frontal view not clearly visualized on the lateral view concerning for an early pneumonia . Normal heart size , mediastinal and hilar contours . No pleural effusion or pneumothorax .
    OUTPUT:
    
Subtle right middle lobe opacity concerning for early pneumonia .