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Case Report

Misdiagnosed atypical paroxysmal kinesigenic dyskinesia: a case report

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Pages 1433-1435 | Published online: 05 Jun 2018
 

Abstract

Background

Paroxysmal kinesigenic dyskinesia (PKD) is characterized by sudden episodes of involuntary movements. PKD is a very rare movement disorder, and correct clinical diagnosis is often a challenge.

Case

We present the case of a 23-year-old female with PKD. The patient showed episodes of twisting movements for 3 years. The symptoms lasted for about 5–10 minutes and subsided spontaneously. She was diagnosed as having epilepsy, and depressive and anxiety disorders successively. However, her symptoms did not alleviate after taking sodium valproate and antidepressants. Though there were no mutations in her PRRT2 gene, carbamazepine was used for treatment and was effective in controlling her symptoms.

Conclusion

The clinical features of PKD patients are not always typical; therefore, it is important to distinguish PKD from the other subtypes of paroxysmal dyskinesia and psychogenic disorders.

Acknowledgments

The authors thank the patient for her consent to publish this article. Written informed consent was obtained from the patient for the case details to be published. This work was supported by grant 2016YFC1307005 from the National Key Research and Development Program of China, grant LGF18H090003 of Basic Public Welfare Research Projects in Zhejiang Province, and grant 2015C03040 of Major Subject of Zhejiang Province. The funding sources had no role in the study design, collection, analysis, and interpretation of data, writing of the manuscript, or decision to submit the paper for publication.

Disclosure

The authors report no conflicts of interest in this work.