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Spinal epidural lipomatosis (SEL) is characterized by fat overgrowth and infiltration into the extradural space.If not treated,it often leads to back pain,spinal cord compression and radiculopathy.However,very few children SEL cases have been reported.Here,our study characterized fat thickness and spinal canal diameter in 92 cases of children SEL,recruited from September 2008 to April 2010.