A network of extremely small blood vessels passing between the pia mater and the cerebral cortex.大脑绒被从软膜和大脑皮层之间穿过的极细的小血管形成的网
Malignant cells in cerebrospinal fluid cytology can be found in only cases of dura-arachno reinforcement and all cases例硬脑膜 -蛛网膜强化者仅 例脑脊液细胞学检到瘤细胞 ; 例软脑膜 -蛛网膜强化者脑脊液细胞学均检到瘤细胞 ;