
AbstractView Supplementary Video1View Supplementary Video2View Supplementary Video3Neurodegeneration with brain iron accumulation (NBIA) includes a rare and heterogeneous group of disorders characterized by iron deposition in the basal ganglia. Pantothenate kinase‐associated neurodegeneration (PKAN) is the most common NBIA and has 2 main presentations: typical and atypical, the latter rarely presents with tremor. Our reported patients underwent full neurologic examination, standard brain magnetic imaging, and genetic testing for PKAN. Three patients who had “tremor‐dominant” PKAN with a relatively benign course were reported, including 1 with dystonic tremor and 2 with parkinsonian tremor. All 3 patients had homozygous mutations in the PANK2 gene and typical eye of the tiger sign on brain imaging. PKAN (and NBIA in general) may be a potential cause of tremor, thus emphasizing the need to consider this diagnosis even in patients with a clinical diagnosis of essential, dystonic, or parkinsonian tremor.
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