Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . The chest is hyperinflated . There is a new opacity projecting over the mid spine on the lateral view , somewhat oval and mass - like , and it may correlate with very vague superior opacity in the right suprahilar region . There is slight rightward convex curvature centered along the lower thoracic spine .
    OUTPUT:
    
Right upper lobe opacity suggesting pneumonia , best seen on the lateral view . However , in order to exclude an unusual presentation of a mass , follow - up radiographs are recommended to show resolution within six to eight weeks . Alternatively if complicated infection or neoplasm is suspected clinically , the chest CT may be helpful .