title: Primary primitive neuroectodermal tumor of the conus medullaris in an elderly patient: a case report and review of the literature.
abstract: Primary spinal primitive neuroectodermal tumors (PNETs) are very rare conditions. Most of these tumors occur in children and young adults. A 63-year-old man with a primary spinal PNET in the conus medullaris from the L1 to L2 level is presented in this report. The optimal treatment of primary spinal PNETs is yet unknown. Surgical resection, radiation therapy, and chemotherapy have been advocated for the treatment of spinal PNET based on PNETs at other sites. However, the outcome is very poor. There are a few reports of cases with long-term survival and no recurrence. In these patients, en bloc resections were performed.
authors: Department of Orthopaedic Surgery, School of Medicine, Keio University, Tokyo, Japan.
authors: H
authors: H
authors: Shimosawa
authors: M
authors: M
authors: Matsumoto
authors: H
authors: H
authors: Yabe
authors: M
authors: M
authors: Mukai
authors: Y
authors: Y
authors: Toyama
authors: H
authors: H
authors: Morioka