This horizontal ( ct scan ) section of the brain reveals a large ependymoma of the fourth ventricle Ct水平扫描可显示第四脑室的大室管膜瘤。
4.
Huwentoxin xi also have a strong biological activity with a ld5n = 256 u g / kg when injected into the fourth ventricle of the adult mouse brain Hwtx -对昆明种小白鼠第四脑室注射表现出较强的活性，其半致死量ld _ ( 50 )为256ug kg 。
5.
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 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。
6.
The irregular posterior fossa mass that is seen here near the midline of the cerebellum and extending into the fourth ventricle above the brainstem is a medulloblastoma 不规则颅后窝肿块即髓母细胞瘤，在小脑中线附近并且延伸至脑干之上的第四脑室。
