Fujii K, Lenkey C, Rhoton A L
J Neurosurg. 1980 Apr;52(4):504-24. doi: 10.3171/jns.1980.52.4.0504.
The microsurgical anatomy of the arteries supplying the choroid plexus in the fourth ventricle and cerebellopontine angles was examined under X3 to X20 magnification in brains from 25 adult cadavers. In the most common pattern, the branches of the anterior inferior cerebellar artery (AICA) supplied the portion of the choroid plexus in the cerebellopontine angle and adjacent part of the lateral recess of the fourth ventricle, and the posterior inferior cerebellar artery (PICA) supplied the choroid plexus in the roof and medial part of the lateral recess of the fourth ventricle. The superior cerebellar artery (SCA) gave rise to a choroidal branch in only one brain. The choroid plexus on each side of the midline was divided into a medial and a lateral segment. Each segment was considered two parts to facilitate the description of its blood supply. The medial segment, located in the roof of the fourth ventricle, was divided into a rostral or nodular part, and a caudal or tonsillar part. The lateral segment, located in the lateral recess of the fourth ventricle and cerebellopontine angle, was separated into a medial or peduncular part, and a lateral or floccular part. The AICA most commonly supplied all the floccular part and the lateral portion of the peduncular part, and the PICA most commonly supplied all of the tonsilar and nodular parts, and the medial portion of the peduncular part.
在25具成人尸体的大脑中，于3倍至20倍放大倍数下，对供应第四脑室和小脑脑桥角脉络丛的动脉进行了显微外科解剖研究。在最常见的模式中，小脑下前动脉（AICA）的分支供应小脑脑桥角和第四脑室外侧隐窝相邻部分的脉络丛，而小脑下后动脉（PICA）供应第四脑室外侧隐窝顶部和内侧部分的脉络丛。仅在一个大脑中，小脑上动脉（SCA）发出了一支脉络丛分支。中线两侧的脉络丛被分为内侧段和外侧段。为便于描述其血液供应，每个段又被分为两部分。位于第四脑室顶部的内侧段被分为头侧或结节部，以及尾侧或扁桃体部。位于第四脑室外侧隐窝和小脑脑桥角的外侧段被分为内侧或脚状部，以及外侧或绒球部。AICA最常供应整个绒球部和脚状部的外侧部分，而PICA最常供应整个扁桃体部和结节部，以及脚状部的内侧部分。
