Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Normal heart size , mediastinal and hilar contours . No pleural effusion or pneumothorax . There is a vague opacity obscuring the right heart border which is localized in the retrosternal space on the lateral view concerning for an early right middle lobe consolidation . Note is made of mild pectus excavatum .
    OUTPUT:
    
Right middle lobe opacity concerning for early pneumonia .