Cerebellopontine angle arachnoid cyst harbouring ectopic neuroglia

Pediatr Neurosurg. 2005 Jul-Aug;41(4):220-3. doi: 10.1159/000086566.

Abstract

Arachnoid cysts are collections of cerebrospinal fluid covered by arachnoidal cells and collagen. They may have a congenital or acquired origin. We present the case of a 7-year-old boy with a cerebellopontine angle arachnoid cyst harbouring a portion of neuroglia. Microscopically, the cyst wall consisted of a delicate fibrovascular membrane lined by a layer of arachnoidal cells. A thin layer of glial tissue ran the whole length of the cyst wall. This finding supports a congenital origin for this case. Cerebellopontine angle arachnoid cysts harbouring neuroglia without ependymal elements are very rare lesions and may be successfully treated by surgical resection.

Publication types

  • Case Reports

MeSH terms

  • Arachnoid Cysts / pathology*
  • Arachnoid Cysts / surgery
  • Cerebellopontine Angle*
  • Child
  • Choristoma / pathology*
  • Choristoma / surgery
  • Humans
  • Male
  • Neuroglia*