Iatrogenic spinal epidermoid tumors are extremely rare and may be caused by skin fragments which were implanted in the spine as a result of a trauma or lumbar puncture. Due to the time lag between the lumbar puncture and the development of a symptomatic tumor, this relationship is often overlooked and can cause a delay in the proper diagnosis. Here, we report a rare case of an intraspinal epidermoid tumor, which developed 7 years after a lumbar puncture in a 12-year-old boy, who presented with back pain and radiating pain to the posterior of both thighs. A total excision of the tumor via L3-L4 hemilaminectomy yielded a good functional recovery.
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