Tsutsumi Satoshi, Ono Hideo, Yasumoto Yukimasa, Ishii Hisato
Department of Neurological Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, Urayasu, Chiba, 279-0021, Japan.
Division of Radiological Technology, Medical Satellite Yaesu Clinic, Tokyo, Japan.
Surg Radiol Anat. 2019 Sep;41(9):1045-1051. doi: 10.1007/s00276-019-02290-z. Epub 2019 Jul 16.
There has not been a study documenting the distribution of cerebrospinal fluid (CSF) pathways in the anterolateral base of the middle fossa (ALB) and diploe of the pterional region (Pt). The present study aimed to delineate these pathways using magnetic resonance imaging.
Thin-sliced, axial, and coronal T2-weighted sequences were performed for a total of 358 outpatients, including 20 pediatric patients.
Adult population: CSF-filled channels were identified on axial images in the ALB in 57% and in the diploe of the Pt in 65% of 338 patients. These pathways showed variable morphology and number bilaterally. CSF-filled channels were identified on coronal images in the ALB in 14% and in the diploe of the Pt in 100% of 59 patients. These were delineated as linear structures of variable number and thickness. Eleven percent of the pathways identified in the ALB was connected with extracranial channels. Pediatric population: CSF-filled channels were identified on axial images in the ALB in 75% and in the diploe of the Pt in 80% of 20 patients.
The ALB and diploe of the Pt may function as CSF pathways in children and adults. The pathways in the ALB can be a CSF-drainage route connecting to the extracranial sites.
尚未有研究记录中颅窝前外侧底部（ALB）和翼点区域板障（Pt）的脑脊液（CSF）通路分布情况。本研究旨在利用磁共振成像描绘这些通路。
对总共358名门诊患者（包括20名儿科患者）进行了薄层轴向和冠状位T2加权序列检查。
成人组：在338例患者中，57%的患者在轴向图像上可识别出ALB内充满脑脊液的通道，65%的患者在Pt板障内可识别出此类通道。这些通路双侧形态和数量各异。在59例患者中，14%的患者在冠状图像上可识别出ALB内充满脑脊液的通道，100%的患者在Pt板障内可识别出此类通道。这些通道被描绘为数量和厚度各异的线性结构。在ALB中识别出的通道有11%与颅外通道相连。儿科组：在20例患者中，75%的患者在轴向图像上可识别出ALB内充满脑脊液的通道，80%的患者在Pt板障内可识别出此类通道。
Pt的ALB和板障在儿童和成人中可能起到脑脊液通路的作用。ALB中的通路可能是连接至颅外部位的脑脊液引流途径。
