J Korean Neurosurg Soc.  1997 Nov;26(11):1562-1567.

Partial Posterior Canal Labyrinthectomy for Pontine Cavernous Angioma

Affiliations
  • 1Department of Neurosurgery, Kosin University Medical College, Pusan, Korea.
  • 2Department of Otolaryngology, Kosin University Medical College, Pusan, Korea.

Abstract

The transpetrosal approach to the anterior portion of a brain stem lesion with intact hearing is often limited by portions of the labyrinth. The technique of partial labyrinthectomy, by which the posterior and superior semicircular canals, maximizes surgical exposure while preserving hearing. We report the case of a patient who underwent a modified partial labyrinthectomy involving resection of the posterior semicircular canal only in the area of the labyrinth. Technical modification of the partial labyrinthectomy approach simplifies tumor removal while preserving hearing.

Keyword

Transpetrosal approach; Hearing preservation; Partial labyrinthectomy; Posterior semicircular canal

MeSH Terms

Brain Stem
Ear, Inner
Hearing
Hemangioma, Cavernous*
Humans
Semicircular Canals
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