Skin biopsy has also helped in recognizing peculiar patterns of neuropathy in disorders such as Cerebellar Ataxia, Neuropathy, Vestibular Areflexia Syndrome (CANVAS) [19], a pathology related to RFC1 expansions causing sensory axonal neuropathy and, particularly, chronic cough, which could be related to non-length-dependent damage to laryngeal small nerve fibers. Here, RFC1 is linked to neuropathy.