subependymoma

sub·ep·en·dy·mo·ma

(sŭb'ep-en-di-mō'mă), [MIM*600139]
Discrete lobulated ependymal nodules in the walls of the anterior third or posterior fourth ventricles commonly found at autopsy.

sub·ep·en·dy·mo·ma

(sŭb'ep-en'di-mō'mă)
Discrete lobulated ependymal nodules in the walls of the anterior third or posterior fourth ventricles commonly found at autopsy.
References in periodicals archive ?
Histologic evaluation of the lesion confirmed the diagnosis of subependymoma (Figure 5).
The differential diagnosis of a subependymoma is an ependymoma, choroid plexus papilloma, central neurocytoma, subependymal giantcell astrocytoma, hemangioblastoma, cavernous malformation, and metastasis.
On gross examination, subependymomas have a white to gray color, are well circumscribed with a firm texture, and are usually avascular with an attachment to the ventricular wall by a narrow pedicle.
Sudden unexpected death resulting from previously nonsymptomatic subependymoma.
The differential considerations for both studies included ependymoma, subependymoma, neurocytoma, giant cell astrocytoma, and metastasis.
Given the epithelial nature of the current lesion, multiple entities are eliminated, including melanoma, melanocytoma, pigmented astrocytoma, and subependymoma.
The subependymomas calcify in approximately one third of cases and usually demonstrate small foci of calcification.