Orphanet rare-disease nomenclature id Orphanet_99936 (Autosomal dominant Charcot-Marie-Tooth disease type 2B) (CMT2B) is a severe form of axonal Charcot-Marie-Tooth disease, a peripheral sensorimotor neuropathy. CMT2B onset, in the 2nd or 3rd decade, is characterized by ulcerations and infections of feet. Symmetric and distal weakness develops mostly in the legs together with a severe symmetric distal sensory loss, tendon reflexes are only reduced at ankles and foot deformities, including pes cavus or planus and hammer toes, appear in childhood. Also known as: CMT2B.