Parasagittal ependymoma resembling falcine meningioma.

Presentation, diagnosis, and management of an unusual parasagittal ependymoma, radiographically resembling a falcine meningioma, are described. Despite its radiographic appearance, pathologic evaluation revealed classic features of an ependymoma. The radiographic and pathologic characteristics of this unusual lesion are briefly examined, and the literature is reviewed. Although extraaxial ependymomas are rare, they should be considered in the radiographic differential diagnosis of dural-based lesions, especially for patients within the first 3 decades of life.