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Sensory neuronopathy differs from the more common length dependent axonal polyneuropathies (such as diabetic sensorimotor polyneuropathy) in that the symptoms do not progress in a distal to proximal pattern (starting in the feet and progressing to the legs and hands), rather symptoms develop in a multifocal, asymmetric, and non-length dependent ...
In an individual with dHMN V, electromyography will show pure motor neuropathy, patterns of weakness without upper motor neuron damage, in the hands. Tendon reflexes will also appear normal. [ 9 ] Clinical, electrophysiological, and pathological testing will show a lack of damage to sensory neurons, differentiating this disease from CMT.
A neuronopathy affects the cell body of a nerve cell in the peripheral nervous system. [5] Amyotrophic lateral sclerosis; Spinal muscular atrophy; Spinal muscular atrophy with respiratory distress type 1; Atypical motor neuron diseases; Dorsal root ganglion disorders
Neuronopathy is the result of issues in the peripheral nervous system (PNS) neurons. They may be caused by motor neurone diseases , sensory neuronopathies , toxins, or autonomic dysfunction. Neurotoxins such as chemotherapy agents may cause neuronopathies.
Hereditary motor and sensory neuropathies (HMSN) is a name sometimes given to a group of different neuropathies which are all characterized by their impact upon both afferent and efferent neural communication. HMSN are characterised by atypical neural development and degradation of neural tissue. The two common forms of HMSN are either ...
Distal hereditary motor neuronopathies (distal HMN, dHMN), sometimes also called distal hereditary motor neuropathies, are a genetically and clinically heterogeneous group of motor neuron diseases that result from genetic mutations in various genes and are characterized by degeneration and loss of motor neuron cells in the anterior horn of the spinal cord and subsequent 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.
Cerebellar ataxia with neuropathy and vestibular areflexia syndrome (CANVAS) is an autosomal recessive late-onset heredodegenerative multisystem neurological disease. The symptoms include poor balance and difficulty walking.