Immediate disappearance of hemifacial spasm after partial removal of ponto-medullary junction anaplastic astrocytoma: case report

Melina Castiglione, Morgan Broggi, Roberto Cordella, Francesco Acerbi, Paolo Ferroli

Research output: Contribution to journalArticlepeer-review

Abstract

Hemifacial spasm (HFS) is generally caused by a neurovascular conflict (NC) at the root exit zone (REZ) of the facial nerve at the brainstem. Although a direct compression to the seventh cranial nerve (CN) by the anterior inferior cerebellar artery (AICA) is generally the most frequent cause, secondary HFS may be related to other pathological conditions. HFS due to an intracranial mass lesion is exceptionally rare and it has been reported in very few cases. The online database was searched for English-language articles reporting cases of HFS due to brainstem mass lesions and the possible pathophysiological mechanisms involved in its genesis. A 47-year-old man affected by an anaplastic astrocytoma of the brainstem at the level of the ponto-medullary junction developed right HFS. He underwent a subtotal surgical removal of the tumor with complete resolution of the HFS. This is the ninth reported case of HFS caused by an intrinsic brainstem tumor. The exceptional rarity of the relationship between intra-axial tumors and peripheral HFS was analyzed.

Original languageEnglish
Pages (from-to)385-390
Number of pages6
JournalNeurosurgical Review
Volume38
Issue number2
DOIs
Publication statusPublished - 2015

Keywords

  • Brainstem tumor
  • Ephaptic transmission
  • Hemifacial spasm

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

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