Intraconal Retro-Orbital B-Type Antoni Neurinoma Causing Vision Loss

J Craniofac Surg. 2020 Sep;31(6):e597-e599. doi: 10.1097/SCS.0000000000006726.

Abstract

Schwannoma is a rare benign tumor, originating from Schwann cells of the peripheral nerve sheath. We describe a case of intraconal orbital schwannoma, causing compression to the optic nerve and progressive visual impairment treated with surgical resection. The diagnosis of benign orbital schwannoma was provided by histopathological examination (large spindle cell tumor with AntoniB-type cell pattern) and also with immunohistochemistry (positivity for S-100 protein). The 6 months' follow-up was performed. The patient was asymptomatic during the 6-month follow-up.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Humans
  • Immunohistochemistry
  • Male
  • Neurilemmoma / complications
  • Neurilemmoma / surgery*
  • Optic Nerve / pathology
  • Orbital Neoplasms / complications
  • Orbital Neoplasms / surgery*
  • S100 Proteins / metabolism
  • Vision Disorders / etiology*

Substances

  • S100 Proteins