PANK1 and abetalipoproteinemia: The diagnosis of ChAc is based on typical clinical manifestations, laboratory findings, and neuroimaging with the exclusion of other types of acanthocytosis, such as abetalipoproteinemia (ABL), McLeod syndrome (MLS), Huntington’s disease-like 2 (HDL2), and pantothenate kinase-associated neurodegeneration (PKAN).