Axonal Charcot-Marie-Tooth disease type 2II (CMT2II) is an autosomal dominant neurologic disorder characterized by a slowly progressive sensorimotor peripheral neuropathy affecting mainly the lower limbs, resulting in distal muscle weakness and atrophy and subsequent walking difficulties. Some patients may have upper limb involvement with atrophy of the intrinsic hand muscles. The age at onset is highly variable, ranging from infancy to adulthood. Electrophysiologic studies are usually consistent with an axonal process, although some may show intermediate or even demyelinating values (Park et al., 2020; Ando et al., 2022). One family with possible autosomal recessive inheritance has been reported (Bogdanova-Mihaylova et al., 2021). For a discussion of genetic heterogeneity of axonal CMT, see CMT2A1 (118210). [from OMIM]