它们位于脑室管膜内、室管膜下，或距室管膜有一定距离处，但有突起伸至第三脑室。

They were located in the ependymal layer, subependymal layer or region with some distance to the ependyma, sending processes into the third ventricle.

youdao

发生在脑干之上第四脑室室管膜的室管膜瘤。组织学上，室管膜瘤是良性肿瘤。

Here is an ependymoma arising from the ependymal lining of the fourth ventricle above the brainstem and bulging toward the cerebellum. Ependymomas are benign histologically.

youdao

结果第三脑室室周的室管膜下和室管膜内含有胞体或突起与第三脑室直接接触的生长抑素阳性神经元。

Results Some of somatostatin positive neurons were distributed in the ependymal and subependymal layers of the third ventricle.

youdao