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Case Reports
. 2017 Jan;29(90):47-52.

Childhood Laryngeal Dystonia Following Bilateral Globus Pallidus Abnormality: A Case Study and Review of Literature

Mohammad Javad Saeedi Borujeni  1 , Ebrahim Esfandiary  1 , Mostafa Almasi-Dooghaee  2
Affiliations
Case Reports

Childhood Laryngeal Dystonia Following Bilateral Globus Pallidus Abnormality: A Case Study and Review of Literature

Mohammad Javad Saeedi Borujeni et al. Iran J Otorhinolaryngol. 2017 Jan.

Abstract

Introduction: Dystonia is a disorder of movement caused by various etiologies. Laryngeal dystonia is caused by the spasm of laryngeal muscles. It is a disorder caused by vocal fold movement in which excessive adduction or abduction of the vocal folds occurs during speech. The pathophysiology of this type of dystonia is not fully known. Some researchers have suggested that basal ganglia structures and their connections with cortical areas have been involved in the pathogenesis of dystonia.

Case report: In this paper a 7.5-year-old boy suffering from laryngeal dystonia with bilateral lesions in Globus Pallidus is presented. The patient also suffered from swallowing problems, monotone voice, vocal tremor, hypersensitivity of gag reflex, and stuttering. Drug treatment failed to cure him; therefore, he was referred to rehabilitation therapy.

Conclusion: In conclusion, special attention should be brought upon laryngeal dystonia, especially in patients showing Extra-pyramidal symptoms and/or abnormalities of the basal ganglia. In children, laryngeal dystonia may be potentially fatal. Lack of consideration for this condition during rehabilitation therapy can lead to serious consequences for a child.

Keywords: Basal ganglia; Globus pallidus; Laryngeal dystonia.

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Figures

Fig1
Fig1
Magnetic resonance imaging (MRI) scans of patient showing bilateral Globus pallidus (GP) abnormality (red arrow). Left: Axial FLAIR brain MRI, shows hyposignality in bilateral GP with a hypersignality in its medial part; Right: Sagittal T2-weighted brain MRI shows hypersignality in medial part of GP.
See this image and copyright information in PMC

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