Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The mediastinal and hilar contours appear unchanged including a convexity reflecting a left - sided fat - containing Bochdalek hernia . An eventration of the right hemidiaphragm is also unchanged . There is no pleural effusion or pneumothorax . A thoracolumbar compression deformity appears new since the prior radiographs and also since more recent lumbar spine radiographs .
    OUTPUT:
    
No evidence of acute disease . Mild superior endplate compression deformity of the T12 vertebral body , new since prior studies , but age - indeterminant .