<unk>  is a particular type of neuropathic disorder. In general, distal hereditary<unk>  neuropathies affect the axons of distal<unk>  neurons and are characterized by progressive weakness and atrophy of muscles of the extremities. It is common for them to be called "spinal forms of Charcot-Marie-Tooth disease (CMT)", because the diseases are closely related in symptoms and genetic cause. The diagnostic difference in these diseases is the presence of sensory loss in the extremities. There are seven classifications of dHMNs, each defined by patterns of inheritance, age of onset, severity, and muscle groups involved. Type<unk>  (sometimes notated as Type 5) is a disorder characterized by autosomal dominance, weakness of the upper limbs that is progressive and symmetrical, and atrophy of the small muscles of the hands.
Distal hereditary motor neuropathy type V
Hereditary sensory and autonomic neuropathy type I
Familial amyloid neuropathy
Giant axonal neuropathy
Familial amyloid polyneuropathy
Distal spinal muscular atrophy type 1
Madras motor neuron disease
Distal spinal muscular atrophy type 2