HMSN + Systemic, CNS or Cranial nerve Disorders: Dominant, Axonal
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Overview
From WUSTL NeuromuscularHMSN + Pyramidal features (HMSN 5) 7 ● Chromosome 4q34.3-q35.2; Dominant Genetics Some patients with MFN2 mutations: H165D KIF5A mutations Clinical Onset: 2nd decade or later Weakness: Distal; Legs > Arms Upper motor neuron Extensor plantar responses Tendon reflexes: Brisk (60%) Spasticity: Some patients, but usually mild Sensory Loss: Distal legs; Symmetric Pain: Legs; Most patients Progression Slow Little disability in most patients Occasional patients in wheelchair by 10 years Laboratory Electrophysiology: Axon loss Nerve pathology: Axon loss Also see: CMT + Upper motor neuron HMSN 129 ● Se
OMIM Entries
External Resources
Data sourced from the Washington University Neuromuscular Disease Center. For clinical use, always refer to primary sources.