鞍区室管膜瘤一例

Ependymoma in Sellar Region: Report of One Case

室管膜瘤为起源于脑室内的室管膜细胞及脑室外白质的室管膜细胞巢,发病部位可以在脑室内、外,按解剖学又可分为幕上及幕下室管膜瘤。幕上室管膜瘤常见的发病部位为脑室外及脑室内,发生于鞍区的室管膜瘤极为罕见。中国人民解放军总医院海南医院经病理学确诊了1例鞍区室管膜瘤,其特征性影像学表现为塑形性生长、结节样钙化及流空血管影。

Ependymoma arises from the ependymal cells of the ventricles and the ependymal cell nest in the white matter of the extra-ventricles.It may be located inside or outside ventricle and can be anatomically classified into supra-and infratentorial ependymomas.Supratentorial ependymoma can be found both inside and outside ventricle but is rarely seen in the sellar regio.This article reports a pathologically confirmed ependymoma case featured by plastic growth,nodular calcification,and flow-void signal.