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Cervical dystonia associated with tumors of the posterior fossa

✍ Scribed by Joachim K. Krauss; Wolfgang Seeger; Dr. Joseph Jankovic

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 734 KB
Volume: 12
Category: Article
ISSN: 0885-3185
DOI: 10.1002/mds.870120329

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Cervical dystonia was associated with posterior fossa tumors in three patients. The onset of dystonia paralleled the appearance of other focal neurologic signs. All patients had extra‐axial tumors located in the cerebellopontine angle that were removed via suboccipital approaches. The tumors were identified as schwannomas arising from the glossopharyngeal nerve and from the vagus/accessory nerves; and a meningioma. Postoperatively, the cervical dystonia improved markedly during a period of 8 years in one patient, and it remitted completely within 1 year in another patient. In the third patient, cervical dystonia persisted. The combination of the clinical findings and the temporal relationship of their appearance suggest a causal association between the posterior fossa tumors and cervical dystonia in these three cases. Possible pathogenic mechanisms are reviewed.

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