Ependymal cells are also neuroglial cells, and they're cuboidal-to-columnar - so square to rectangular shaped - ciliated cells that line the ventricles and central canal.

室管膜细胞也属于神经胶质细胞，呈立方或柱状，部分带有纤毛，排列在脑室和脊髓中央管内。

Histologically, a prominent feature are their perivascular pseudorosettes, which are ring-like structures formed by tumors cells with rod-shaped ependymal processes, like cilia, surrounding a centralized blood vessel.

从组织学上看，主要的特征是血管周假菊形团，由室管膜瘤细胞的棒状突起（如纤毛）形成的环状结构，围绕着中央的血管。

Now, again, they can form in the brain and spinal cord because that's where ependymal cells are found, but pediatric ependymomas tend to form in the fourth ventricle.

同样，它们可以在大脑和脊髓中形成，因为这些地方分布着室管膜细胞，但儿童室管膜瘤往往在第四脑室形成。