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Japanese

Visual Defect due to Chiasmic Compression by the A1 Portion of the Anterior Cerebral Artery Genichiro Ohhashi 1 , Taroh Kogure 1 , Yoshiji Okuda 1 , Satoshi Tani 1 , Masami Kamio 1 , Takeki Ogawa 1 , Toshiaki Abe 1 1Department of Neurological Surgery, Jikei University School of Medicine Keyword: quadrantanopia , vascular compression , optic chiasma , A1 portion , visual pathway pp.569-572
Published Date 1998/6/1
DOI https://doi.org/10.11477/mf.1406901301
  • Abstract
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Unilateral nasal hemianopia is highly difficult to notice with bilateral vision intact, and only a few cases has been reported. There are several reported cases of quadrantic hemianopia caused by cerebral lesions, but the defects were found bilaterally in all cases. There is only one reported case of which an aneurysm was believed to be the cause.

We confronted 3 cases of unilateral nasal quad-rantic hemianopia. In either case no ophthalmologic disorders could be found but magnetic resonance imaging revealed the compression of the optic chias-ma by the A1 portion of the anterior cerebral artery.


Copyright © 1998, 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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