Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pneumothorax . The heart and mediastinum are within normal limits . There is generalized osteopenia and multilevel spinal degenerative changes . The patient is status post right femoral head fixation . Flowing anterior spinal ossification involving multiple contiguous vertebral bodies with relative preservation of the intervertebral disc spaces is compatible with diffuse idiopathic skeletal hyperostosis ( DISH ) . A chronic compression fracture involving a lower thoracic vertebral body results in moderate loss of vertebral body height .
    OUTPUT:
    
Clear lungs . Diffuse idiopathic skeletal hyperostosis ( DISH ) . Chronic lower thoracic spine compression fracture .