Neuropathy, Hereditary Sensory and Autonomic, Type Ic, also known as hsan1c, is related to hereditary sensory and autonomic neuropathy type 1 and autonomic neuropathy, and has symptoms including dysesthesia An important gene associated with Neuropathy, Hereditary Sensory and Autonomic, Type Ic is SPTLC2 (Serine Palmitoyltransferase Long Chain Base Subunit 2), and among its related pathways/superpathways are Sphingolipid metabolism and Sphingolipid pathway. Affiliated tissues include skin and peripheral nerve, and related phenotypes are impaired pain sensation and decreased motor nerve conduction velocity