Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate unremarkable cardiomediastinal and hilar contours . Lungs are clear . Opacification in right middle lung is unchanged compared to prior and corresponded with bronchovascular structures on same day CT . No pleural effusion or pneumothorax present .
    OUTPUT:
    
Normal chest radiograph .