Malignant triton tumor of the lumbar spine

Spine
M Reşat YimazA Sükrü Solak A

Abstract

A case report of surgically treated malignant triton tumor of the L2 nerve root. To discuss treatment methods of the rare malignant triton tumor. Malignant peripheral nerve sheath tumors are neoplasms that most often arise in peripheral nerves or in neurofibromas. Malignant triton tumor is a histologic variant of those tumors. A 58-years-old male patient was admitted with severe back and leg pain. Magnetic resonance imaging revealed a dumbbell-shaped tumor over the right L2 nerve root. The tumor mass was removed posteriorly and the spine was stabilized by transpedicular screws followed by radiation therapy. The tumor was diagnosed as "malignant triton tumor." There was no sign of metastasis during the 8 months of follow up. In this case, the diagnosis of triton tumor is based solely on microscopic evidence of the neural tissue accompanied by rhabdomyoblasts and immunohistochemical examination. Patients with malignant triton tumors are usually younger than age 35. Our patient is 1 of the oldest patients with tumor occurrence in the spinal canal. Although our patient still has no evidence of recurrence, the prognosis is poor for this group of patients.

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Citations

Jul 8, 2011·Neuropathology : Official Journal of the Japanese Society of Neuropathology·Ruth PrietoFrancisco González-Llanos
Jun 4, 2008·Journal of Neurosurgery. Spine·Greg JamesBhupal P Chitnavis
Oct 31, 2012·Cancer Imaging : the Official Publication of the International Cancer Imaging Society·S C KamranN H Ramaiya
Dec 17, 2015·Experimental and Therapeutic Medicine·Qiang DengMai Er Dan
Jun 6, 2006·European Journal of Surgical Oncology : the Journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology·E AldlyamiR M Tillman
Aug 20, 2014·Journal of Spinal Disorders & Techniques·Ming YangGuo-hua Lü
Sep 16, 2009·Spine·Matthias SchulzVenkataraman Balakrishnan
Sep 20, 2017·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Soufiane GhailaneJean-Charles Le Huec
Nov 8, 2017·Acta orthopaedica et traumatologica turcica·Abdullah MerterYener Sağlık

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