Familial Nonkinesigenic Paroxysmal Dyskinesia and Intracranial Calcifications: A New Syndrome?

摘要

Paroxysmal nonkinesigenic dyskinesia (PNKD) refers to a clinical syndrome characterized by attacks of involuntary movements, including dystonia, chorea, athetosis, or ballism, occurring at rest.PNKD is associated to a wide range of aetiologies, for example, autoimmune, vascular, traumatic, infective, and endocrine disorders.1 However, most cases of PNKD are idiopathic and neuroimaging is usually unremarkable. We report a PNKD family whose computed tomography (CT) scan revealed intracranial calcifications.