internal hydrocephaly

例句：

1. 1.The child was diagnosed with internal hydrocephaly and required surgery.
   这个孩子被诊断出患有脑积水，需要手术。
2. 2. Internal hydrocephaly can be caused by a variety of factors, including genetics and brain trauma.
   脑积水可以由多种因素引起，包括遗传和大脑创伤。
3. 3. In some cases, internal hydrocephaly may lead to severe cognitive impairment or even death.
   在一些情况下，脑积水可能导致严重的认知障碍甚至死亡。