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The early names of the inherited neuropathies were given after the most prominent features or the suggested underlying mechanism of the diseases, such as mal perforant du pied, ulcero-mutilating neuropathy, hereditary perforating ulcers, familial trophoneurosis, familial syringomyelia, hereditary sensory radicular neuropathy, among others.
Symptoms of sensory neuropathy may sometimes precede the cancer diagnosis by several months. Immune mediated sensory neuronopathy is commonly associated with Sjogrens syndrome . [ 5 ] Sjogren's is most commonly affected by a length dependent axonal sensorimotor neuropathy characterized by symptoms in the extremities.
Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy).
Neuropathy disorders usually have onset in childhood or young adulthood. Motor symptoms seem to be more predominant than sensory symptoms. [2] Symptoms of these disorders include: fatigue, pain, lack of balance, lack of feeling, lack of reflexes, and lack of sight and hearing, which result from muscle atrophy.
Hereditary sensory neuropathy type 1 is a condition characterized by nerve abnormalities in the legs and feet (peripheral neuropathy). Many people with this condition have tingling, weakness, and a reduced ability to feel pain and sense hot and cold.
Megavitamin-B 6 syndrome is predominately a large fiber neuropathy characterized by sensory loss of joint position, vibration, and ataxia. [18] [26] Although it has characteristics of small fiber neuropathy in severe cases where there is impairment of pain, temperature, and autonomic functions. [62] [63] [14] [12] [59] [64] [17]
Some sufferers (10–15%) report various pains growing in severity with progression of the disease. [1] The nerves most commonly affected are the peroneal nerve at the fibular head (leg and feet), the ulnar nerve at the elbow (arm) and the median nerve at the wrist (palm, thumbs and fingers), but any peripheral nerve can be affected.
Hereditary motor and sensory neuropathy with proximal dominance (HMSN-P) is an autosomal dominant neurodegenerative disorder that is defined by extensive involuntary and spontaneous muscle contractions, asthenia, and atrophy with distal sensory involvement following. The disease starts presenting typically in the 40s and is succeeded by a slow ...