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CC BY-NC-ND 4.0 · Arq Neuropsiquiatr 2021; 79(09): 853
DOI: 10.1590/0004-282X-ANP-2020-0461
Images in Neurology

Hemihypomimia: an atypical and interesting feature of Parkinson's disease

Hemihipomimia: um sinal infrequente e interessante da doença de Parkinson
Bárbara Santos Panichelli 
1   Universidade do Estado do Rio de Janeiro, Hospital Universitário Pedro Ernesto, Serviço de Neurologia, Rio de Janeiro, RJ, Brazil.
,
Mariana Spitz 
1   Universidade do Estado do Rio de Janeiro, Hospital Universitário Pedro Ernesto, Serviço de Neurologia, Rio de Janeiro, RJ, Brazil.
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Bradykinesia is a key feature of Parkinson's disease (PD)[1]. In contrast to facial bradykinesia, limb bradykinesia is a well described phenomenon. Hypomimia develops in almost all PD patients[2] as a symmetrical feature. Hemihypomimia is a rare manifestation seen mostly, but not exclusively, on right-sided PD[2]. We present images of two patients with hemihypomimia ([Figure 1]).

Zoom ImageZoom Image
Figure 1 (A) A 52-year old man, diagnosed to have PD presents marked right-side hypomimia; (B): A 46-year old man diagnosed with PD displaying evident right-sided hypomimia.

Understanding the underlying mechanisms of how hemihypomimia develops, and why it predominantly affects the right side of the face deserves further assessment. Larger case series are needed to elucidate the pathophysiology and clinical implications of this interesting feature of PD.


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Conflict of interest:

There is no conflict of interest to declare.

Authors’ contribution:

BSP: was involved in conceptualization and writing original draft; MS: was involved in conceptualization, writing, review and editing the article.


  • References

  • 1 Bologna M, Fabbrini G, Marsili L, Defazio G, Thompson PD, Berardelli A.Facial bradykinesia. J Neurol Neurosurg Psychiatry. 2013 Jun;84(6):681-5. https://doi.org/10.1136/jnnp-2012-303993
  • 2 Ozekmekçi S, Benbir G, Ozdogan FY, Ertan S, Kiziltan ME.Hemihypomimia, a rare persistent sign in Parkinson's disease: follow up of 11 patients. J Neurol. 2007 Mar;254(3):347-50.

Address for correspondence

Bárbara Santos Panichelli

Publikationsverlauf

Eingereicht: 02. Oktober 2020

Angenommen: 14. Februar 2021

Artikel online veröffentlicht:
01. Juni 2023

© 2021. Academia Brasileira de Neurologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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