The compressed part of the brainstem is called the left cerebral peduncle.

这时脑干受压的部分称为左侧大脑脚。

Eventually, this injury of the left cerebral peduncle will result in weakness on the same side of the body as the side of the focal mass effect, also called ipsilateral weakness.

最终，左侧大脑脚的损伤会导致颅内占位同侧（右侧）的肌肉无力，即同侧偏瘫。