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Surgical and Radiologic Anatomy
Published in: Surgical and Radiologic Anatomy 9/2019

01-09-2019 | Magnetic Resonance Imaging | Original Article

Possible cerebrospinal fluid pathways in the middle fossa floor and pterional diploe: a magnetic resonance imaging study

Authors: Satoshi Tsutsumi, Hideo Ono, Yukimasa Yasumoto, Hisato Ishii

Published in: Surgical and Radiologic Anatomy | Issue 9/2019

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Abstract

Purpose

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.

Methods

Thin-sliced, axial, and coronal T2-weighted sequences were performed for a total of 358 outpatients, including 20 pediatric patients.

Results

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.

Conclusions

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.
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Metadata
Title
Possible cerebrospinal fluid pathways in the middle fossa floor and pterional diploe: a magnetic resonance imaging study
Authors
Satoshi Tsutsumi
Hideo Ono
Yukimasa Yasumoto
Hisato Ishii
Publication date
01-09-2019
Publisher
Springer Paris
Published in
Surgical and Radiologic Anatomy / Issue 9/2019
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI
https://doi.org/10.1007/s00276-019-02290-z

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