Charcot-Marie-Tooth disease type 4E (MONDO_0011527) (CMT4E) is a congenital, hypomyelinating subtype of Charcot-Marie-Tooth disease type 4 characterized by a Dejerine-Sottas syndrome-like phenotype (incl. hypotonia and/or delayed motor development in infancy), extremely slow nerve conduction velocities, potential respiratory dysfunction, cranial nerve involvement, and the typical CMT phenotype, i.e. distal muscle weakness and atrophy, sensory loss, and foot deformity. Also known as: CMT4E, Charcot-Marie-Tooth neuropathy type 4E, Neuropathy, Congenital Hypomyelination, autosomal recessive congenital hypomyelinating neuropathy, autosomal recessive congenital hypomyelinating or amyelinating neuropathy, hypomyelinating neuropathy, congenital, 1, neuropathy, congenital hypomyelinating, 1.