Cerebellopontine angle tumor composed of Schwann and meningeal proliferations.

Publication/Presentation Date

11-1-2001

Abstract

Tumors found in the cerebellopontine angle are predominantly vestibular schwannomas. Mixed tumors found within the cerebellopontine angle are thought to be exceedingly rare and exclusively associated with neurofibromatosis 2. We report a case of a mixed tumor composed of Schwann and meningeal cell proliferations in a patient who was not diagnosed as having neurofibromatosis 2. Mixed tumors composed of neoplastic Schwann and meningeal cells have rarely been reported. However, new evidence indicates that these mixed tumors may be more common than was previously thought and may have an interrelated mechanism of pathogenesis. Although the case we describe does not fulfill the current diagnostic criteria for neurofibromatosis 2, a presumptive diagnosis was given, suggesting that the current diagnostic criteria for neurofibromatosis 2 may be too narrow.

Volume

127

Issue

11

First Page

1385

Last Page

1389

ISSN

0886-4470

Disciplines

Medicine and Health Sciences

PubMedID

11701080

Department(s)

Department of Surgery, Division of Otolaryngology

Document Type

Article

Share

COinS