Hallervorden-Spatz disease is a movement disorder that is passed down through families (inherited).
Hallervorden-Spatz usually begins in childhood.
Most cases of Hallervorden-Spatz are due to a defect in a gene that makes a protein called pantothenate kinase 2. Patients with this genetic defect have a buildup of iron in parts of the brain.
Jankovic J. Movement disorders. In: Goetz CG, ed. Textbook of Clinical Neurology. 3rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 34.