STOM and overhydrated hereditary stomatocytosis: These conditions include dehydrated hereditary stomatocytosis (DHSt) and overhydrated hereditary stomatocytosis (OHSt), familial pseudohyperkalaemia (FP), cryohydrocytosis (CHC), stomatin-deficient cryohydrocytosis (sdCHC) and South-east Asian Ovalocytosis (SAO) [118].