Extradural dumbbell schwannoma of the hypoglossal nerve: a case report with review of the literature
Journal
Surgical Neurology
Journal Volume
70
Journal Issue
SUPPL. 1
Pages
S34-S38
Date Issued
2008
Author(s)
Abstract
Background: Dumbbell-shaped schwannomas of the hypoglossal nerve are very rare. This report concerns a case with an extradural, dumbbell-shaped hypoglossal schwannoma extending both intra- and extracranially. Case Description: A 25-year-old woman presented with a right hypoglossal palsy. Imaging revealed a dumbbell-shaped tumor with considerable compression and medial displacement of the medulla oblongata, diagnosed as a hypoglossal schwannoma. The tumor mass extended extracranially to the parapharyngeal space through the enlarged hypoglossal canal. The tumor was partially excised by a right far-lateral suboccipital approach and the tumor was found to be predominantly extradural with minimal intradural extension. A histopathologic diagnosis of schwannoma was made. Conclusions: This case emphasizes the importance of recognizing this extradural variant of schwannoma. Staged extracranial and intracranial approaches to these tumors may be necessary. ? 2008 Elsevier Inc. All rights reserved.
SDGs
Other Subjects
adult; article; cancer surgery; case report; cranial nerve paralysis; female; follow up; histopathology; human; human tissue; hypoglossal nerve disease; hypoglossal neurilemoma; medulla oblongata; neurilemoma; spinal cord tumor; surgical approach; tumor localization
Publisher
Elsevier Inc.
Type
journal article