title: Mature orbital teratoma with an ectopic tooth and primary anophthalmos.
abstract: OBJECTIVE
  To describe the clinicopathologic features and management of an unusual case of orbital teratoma.
  
  
  METHODS
  A 7-year-old girl presented with a history of an orbital mass since birth. CT scan showed a large mass lesion involving the right orbit, with absence of the eyeball. An ectopic tooth was identified within the tumor. Lid-sparing exenteration surgery was performed.
  
  
  RESULTS
  Histopathologic examination of the excised mass showed presence of elements from all three germ layers, consistent with a diagnosis of mature orbital teratoma. Normal ocular structures were not identified on histopathology. At one year follow-up, there was no tumor recurrence.
  
  
  CONCLUSIONS
  We report an extremely rare and interesting case of a mature orbital teratoma, which was associated with primary anophthalmos and an ectopic tooth.
authors.affiliation: Oculoplastics, Orbit & Ocular Oncology Service, All India Institute of Medical Sciences, New Delhi, India. bhavna2424@hotmail.com
authors.forename: Bhavna
authors.initials: B
authors.lastname: Chawla
authors.forename: Kanchan
authors.initials: K
authors.lastname: Chauhan
authors.forename: Seema
authors.initials: S
authors.lastname: Kashyap
mesh_terms: D000853:Anophthalmos / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D002648:Child; D002828:Choristoma / Q000473:pathology*; D005260:Female; D006801:Humans; D017233:Orbit Evisceration; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D013724:Teratoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014070:Tooth