Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . Lung volumes are low with persistent mild relative elevation of the right hemidiaphragm compared to the left . Streaky opacities , but nearly confluent posteriorly , project over the right hemidiaphragm . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Right basilar opacity with a component of volume loss but worrisome for pneumonia .