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Neurology International
Volume 11
Issue 3
10.4081/ni.2019.8257
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Neurology International is published by MDPI from Volume 12 Issue 3 (2020). Previous articles were published by another publisher in Open Access under a CC-BY licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
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Case Report

Alternating Flexed-Extended Posturing in Progressive Supranuclear Palsy

by
Nobuyuki Ishii
* and
Hitoshi Mochizuki
Division of Neurology, Respirology, Endocrinology and Metabolism, Department of Internal Medicine, University of Miyazaki, Japan
*
Author to whom correspondence should be addressed.
Neurol. Int. 2019, 11(3), 8257; https://doi.org/10.4081/ni.2019.8257
Submission received: 27 July 2019 / Revised: 27 July 2019 / Accepted: 12 August 2019 / Published: 18 September 2019

Abstract

A 69-year-old man who had been bedridden in nursing home because of a 5-year history of progressive supranuclear palsy (PSP) was admitted due to aspiration pneumonia. Besides neck dystonia in extension, he showed “alternating flexed–extended posturing”, in which the arm was flexed on one side and extended on the other. Magnetic resonance imaging of the brain revealed global cerebral atrophy that predominantly affected the cortex and midbrain. The mechanisms of complex posturing in late-stage PSP may sometimes be related to decortication and decerebration as well as dystonia, and “alternating flexed–extended posturing” might be one of the phenotypes of pathological progression in PSP.
Keywords: progressive supranuclear palsy; dystonia; decerebrate state; decorticate state; abnormal posturing progressive supranuclear palsy; dystonia; decerebrate state; decorticate state; abnormal posturing

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MDPI and ACS Style

Ishii, N.; Mochizuki, H. Alternating Flexed-Extended Posturing in Progressive Supranuclear Palsy. Neurol. Int. 2019, 11, 8257. https://doi.org/10.4081/ni.2019.8257

AMA Style

Ishii N, Mochizuki H. Alternating Flexed-Extended Posturing in Progressive Supranuclear Palsy. Neurology International. 2019; 11(3):8257. https://doi.org/10.4081/ni.2019.8257

Chicago/Turabian Style

Ishii, Nobuyuki, and Hitoshi Mochizuki. 2019. "Alternating Flexed-Extended Posturing in Progressive Supranuclear Palsy" Neurology International 11, no. 3: 8257. https://doi.org/10.4081/ni.2019.8257

APA Style

Ishii, N., & Mochizuki, H. (2019). Alternating Flexed-Extended Posturing in Progressive Supranuclear Palsy. Neurology International, 11(3), 8257. https://doi.org/10.4081/ni.2019.8257

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