title: Mediastinal extension of an intradural teratoma in a patient with split cord malformation: case report and review of literature.
abstract: BACKGROUND
  It is very rare for split cord malformation to be associated with intraspinal teratoma, and it is even rarer for such tumors in the dorsal spine to extend into the mediastinum.
  
  
  METHODS
  The authors describe a spinal teratoma with mediastinal extension in an 8-year-old boy who presented with 1-year history of backache. Neuroimaging revealed a heterogeneously enhancing intradural lesion from D2 to D7 levels with an extension into the mediastinum at the level of D4 vertebra. A split cord malformation type 2 and a cervical syrinx were also present. At surgery, a reddish-brown vascular tumor was present from D3 to D5 levels and was found to be going anteriorly into a defect in the body of D4 vertebra. Gross total excision of the intraspinal tumor was performed. Follow-up at 1 year revealed no recurrence or metastases.
  
  
  CONCLUSIONS
  To the authors' knowledge, this is the first case of an intradural teratoma extending into the mediastinum, occurring concurrently with split cord malformation and other spinal anomalies.
authors.affiliation: Department of Neurosurgery, Neurosciences Center, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India. surineuro@gmail.com
authors.forename: Ashish
authors.initials: A
authors.lastname: Suri
authors.forename: Faiz Uddin
authors.initials: FU
authors.lastname: Ahmad
authors.forename: Ashok Kumar
authors.initials: AK
authors.lastname: Mahapatra
authors.forename: Veer Singh
authors.initials: VS
authors.lastname: Mehta
authors.forename: Mehar Chand
authors.initials: MC
authors.lastname: Sharma
authors.forename: Vipul
authors.initials: V
authors.lastname: Gupta
mesh_terms: D002574:Cervical Vertebrae; D002648:Child; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D009421:Nervous System Malformations / Q000150:complications / Q000473:pathology* / Q000601:surgery; D013116:Spinal Cord / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D013120:Spinal Cord Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D013724:Teratoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome