Background:
Paroxysmal kinesigenic dyskinesia (PKD) is a rare condition associated with heterozygous mutations in the proline-rich transmembrane protein 2 (PRRT2) gene.
Phenomenology shown:
In this article we illustrate the phenomenology of PKD in a male previously misdiagnosed with Tourette's syndrome.
Educational value:
Regardless of the underlying phenotype, PKD is highly responsive to some antiepileptic drugs.