Symptomatic subependymomas of the lateral ventricles.

A case of symptomatic subependymoma of the lateral ventricle in a 64-year-old-woman is presented. We have found only 12 cases of symptomatic subependymoma of the lateral ventricle reported in the literature. We think that this location denotes a specific anatomoclinical entity, with a histological picture and a surgical prognosis that are different from those of the symptomatic subependymomas located in other sites of the ventricular system.