<prompt> What is the other name of Hallervorden-Spatz syndrome?Mitochondrial encephalomyopathy; Lactic acidosis; StrokePantothenate kinase - associated neurodegenerationThiamine-responsive megaloblastic anemia syndromeRiboflavin sensitive myopathy  <response>: Hallervorden-Spatz syndrome : Pantothenate kinase - associated neurodegeneration Rare Autosomal recessive Excessive accumulation of iron containing pigments in brain Accumulation of N-Pantothenoyl-Cysteine and Pantetheine, leading to free radical cell damage Characterized by Parkinson like features mental retardation 