There have been reports that more than 95% of MLS has a translocation of the FUS and DDIT3 (CHOP) genes, which is distinct from the well-differentiated and dedifferentiated forms with amplification of chromosome 12q13-15 carrying the MDM2, CDK2, and MHGA2 genes [8, 9]. The gene discussed is CDK2; the disease is McLeod neuroacanthocytosis syndrome.