大脑前动脉近侧段发育不全的病理学研究

手术显微镜下（Ｘ１０—１６）对成人脑标本１１的一例大脑前动脉近侧 段发育不全和 ６例正常形态之 Ｗｉｌｌｉｓ环前部观察，采用 ＨＥ、Ｖ．Ｇ、Ｇｏｍｏｒｉ氏和醛 品红等四种染色法对每例颈内动脉分叉处，大脑前动脉与前交通动脉交界处及大 脑前动脉近侧段中段共１４个部位进行病理组织学研究．结果表明：（１）结缔组织变 化在优势侧明显大于发育不全侧和对照组两侧．（２）血液液动力学变化与血管壁组 织结构的病理变化密切相关．病理变化最显著之处存在于血液动力学变化最大的 部位．

PATHOLOGICAL STUDY ON HYPOPLASIA OF THE PROXIMAL SEGMENT OF THE ANTERIOR CEREBRAL ARTERY

17 specimens of the anterior part of the circle of Willis, 11 cases of which with hypoplasia of the proximal segment (Al )of the anterior cerebral artery (mild hypoplasis in 5 cases and extreme hypoplasia in 6 cases) and 6 cases of which with normal form,have been observed under the operative microscope (X 10- 16). 14 segments in the in- ternal carotid bifurcation, the anterior cerebral artery /anterior communication artery junction and the middle segment of Al of each circle of Willis were studied with hem - atoxylin - eosin,aldehyde fuchsin, Van Gieson's and Gomri's stainings. The results showed: (1) the connective tissue changes are significantly larger on the dominant side than on the hypoplastic side and the bilateral of the control series. (2)Unilateral hypoplasia of Al indu- ced prominent change in hemodynamics. There was correspondence between the changes in hemodynemics and pathology.