Paraganglioma rarely occurs in the spinal canal. Paraganglioma of the cauda equina has been reported in only 25 cases in the world literature since first reported by Lerman, et al., in 1972. In 1970, Miller reviewed the first case of these, but he confused it with secretory ependymoma. The characteristic histologic appearance is of a Zellballen pattern that consists of polygonal cells separated...
