title: Thoracic epidural teratoma: case report and review of the literature.
abstract: OBJECTIVE
  Spinal teratomas comprise a rare subset of spinal cord tumors, and here, we describe an even rarer childhood thoracic extradural-intracanalicular teratoma. The clinical presentation, management, and pathophysiology of these tumors are reviewed to promote recognition and guide treatment of these lesions.
  
  
  METHODS
  We report the case of a 21-month-old boy who presented with marked spasticity, as well as failure to ambulate and meet motor milestones. Additionally, we provide a literature review of spinal teratomas, including their clinical presentation, work-up, pathophysiology, and underlying genetics.
  
  
  RESULTS
  An MRI of the spine revealed a large dorsal epidural tumor extending from T3 to T10 with heterogeneous contrast enhancement and severe spinal cord compression. The tumor was resected revealing a cystic mass with tissue resembling hair, muscle, as well as cartilage; pathology confirmed the diagnosis of teratoma. Gross total resection was achieved, and the child eventually gained ambulatory function.
  
  
  CONCLUSIONS
  Given that spinal teratomas are rare entities that can present with significant neurologic compromise, they must remain on clinicians' differentials. Unfortunately, the exact origin of these tumors remains inconclusive and requires further investigation.
authors.affiliation: Department of Neurosurgery, Yale-New Haven Medical Center, New Haven, CT, USA.
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Quon
authors.affiliation: Department of Neurosurgery, Yale-New Haven Medical Center, New Haven, CT, USA.
authors.forename: Ryan A
authors.initials: RA
authors.lastname: Grant
authors.affiliation: Department of Pathology, Yale-New Haven Medical Center, New Haven, CT, USA.
authors.forename: Anita J
authors.initials: AJ
authors.lastname: Huttner
authors.affiliation: Department of Neurosurgery, Yale-New Haven Medical Center, New Haven, CT, USA.
authors.forename: Charles C
authors.initials: CC
authors.lastname: Duncan
keywords: extradural–intracanalicular teratoma; spinal teratoma; teratoma; thoracic epidural teratoma