Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . Mild - to - moderate relative elevation of the right hemidiaphragm compared to the left side is noted . Visualized bony structures are unremarkable aside from small osteophytes along the thoracic spine and incompletely characterized degenerative changes along the lower cervical spine . Mild rightward convex curvature is noted along the thoracic spine centered in the mid portion .
    OUTPUT:
    
No radiographic evidence of injury .