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Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy

We report a 60-year-old woman with posterior cortical atrophy (PCA) who presented with left homonymous hemianopsia persisting for 5 years; the patient's condition was observed using static, but not kinetic, perimetry. This statokinetic dissociation of hemianopsia, which is often called Riddoch...

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Autores principales: Hayashi, Ryuichiro, Yamaguchi, Shigeki, Narimatsu, Toshio, Miyata, Hiroshi, Katsumata, Yasushi, Mimura, Masaru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: S. Karger AG 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5803707/
https://www.ncbi.nlm.nih.gov/pubmed/29422846
http://dx.doi.org/10.1159/000481304
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author Hayashi, Ryuichiro
Yamaguchi, Shigeki
Narimatsu, Toshio
Miyata, Hiroshi
Katsumata, Yasushi
Mimura, Masaru
author_facet Hayashi, Ryuichiro
Yamaguchi, Shigeki
Narimatsu, Toshio
Miyata, Hiroshi
Katsumata, Yasushi
Mimura, Masaru
author_sort Hayashi, Ryuichiro
collection PubMed
description We report a 60-year-old woman with posterior cortical atrophy (PCA) who presented with left homonymous hemianopsia persisting for 5 years; the patient's condition was observed using static, but not kinetic, perimetry. This statokinetic dissociation of hemianopsia, which is often called Riddoch syndrome, might have been caused by a dysfunction of the right primary visual and visual association cortices, representing a functional imbalance within a disturbed visual cortex. In patients with PCA and visual field defects, both static and kinetic perimetry may be useful for understanding the extent of degeneration in the visual cortex, in addition to examinations of unilateral neglect.
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spelling pubmed-58037072018-02-08 Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy Hayashi, Ryuichiro Yamaguchi, Shigeki Narimatsu, Toshio Miyata, Hiroshi Katsumata, Yasushi Mimura, Masaru Case Rep Neurol Case Report We report a 60-year-old woman with posterior cortical atrophy (PCA) who presented with left homonymous hemianopsia persisting for 5 years; the patient's condition was observed using static, but not kinetic, perimetry. This statokinetic dissociation of hemianopsia, which is often called Riddoch syndrome, might have been caused by a dysfunction of the right primary visual and visual association cortices, representing a functional imbalance within a disturbed visual cortex. In patients with PCA and visual field defects, both static and kinetic perimetry may be useful for understanding the extent of degeneration in the visual cortex, in addition to examinations of unilateral neglect. S. Karger AG 2017-11-10 /pmc/articles/PMC5803707/ /pubmed/29422846 http://dx.doi.org/10.1159/000481304 Text en Copyright © 2017 by S. Karger AG, Basel http://creativecommons.org/licenses/by-nc/4.0/ This article is licensed under the Creative Commons Attribution-NonCommercial-4.0 International License (CC BY-NC) (http://www.karger.com/Services/OpenAccessLicense). Usage and distribution for commercial purposes requires written permission.
spellingShingle Case Report
Hayashi, Ryuichiro
Yamaguchi, Shigeki
Narimatsu, Toshio
Miyata, Hiroshi
Katsumata, Yasushi
Mimura, Masaru
Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy
title Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy
title_full Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy
title_fullStr Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy
title_full_unstemmed Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy
title_short Statokinetic Dissociation (Riddoch Phenomenon) in a Patient with Homonymous Hemianopsia as the First Sign of Posterior Cortical Atrophy
title_sort statokinetic dissociation (riddoch phenomenon) in a patient with homonymous hemianopsia as the first sign of posterior cortical atrophy
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5803707/
https://www.ncbi.nlm.nih.gov/pubmed/29422846
http://dx.doi.org/10.1159/000481304
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