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The Posterior Inferior Cerebellar Artery:Anatomical and Angiographic Study Masahiro MIZUKAMI 1 1Division of Neurosurgery, Department of Surgery, School of Medicine, Keio University pp.1343-1351
Published Date 1969/12/1
DOI https://doi.org/10.11477/mf.1406202644

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  • Abstract
  • Look Inside

Vertebral angiography has been considered to be of little diagnostic value in the localization of post-erior fossa tumors. Pneumoventriculography is there-fore generally accepted to be of great importance.

The variations in the course of the vessels in the posterior fossa and their correlative relationship to the adjacent structures were studied at autopsy by dissection and at vertebral angiography.

Despite numerous variations, the posterior inferior cerebellar artery is easily identified on angiograms and its course is intimately related to the adjacent structures such as medulla, tonsil, aqueduct, post-erior aspects of fourth ventricle and inferior vermis.

In this series, the artery is clearly distinctive with high percentage, i. e. 96% at autopsy materials and 88% at retrospective interpretation of the vertebral angiograms respectively. The bifurcation of the medial and the lateral branches of the posterior -in-ferior cerebellar artery and the turning point of the -medial branch located beneath the fastigium are verified to be almost on midline in this study. The "bifurcation" and the "turning point" therefore have significant value to analye the posterior fossa space taking lesions.

Displacements and deformities of this artery are interpreted in terms of the typical configurations and is of considerable importance in the recognition and localization of space taking lesion including inter-pretations of other vessels.


Copyright © 1969, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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