Neuropathy, Hereditary Sensory and Autonomic, Type Viii, also known as hsan8, is related to anhidrosis and marsili syndrome. An important gene associated with Neuropathy, Hereditary Sensory and Autonomic, Type Viii is PRDM12 (PR/SET Domain 12), and among its related pathways/superpathways are Sphingolipid pathway and Phase 0 - rapid depolarisation. Affiliated tissues include tongue and skin, and related phenotypes are pain insensitivity and impaired temperature sensation