Hereditary sensory and autonomic neuropathy (HSAN): type II

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Hereditary sensory and autonomic neuropathy (HSAN): type II. HSAN IIA: WNK1, HSAN IIB: FAM134B, HSAN IIC: KIF1A. Fully referenced neurology checklist.

Genetic classification

  • HSAN IIA: WNK1
  • HSAN IIB: FAM134B
  • HSAN IIC: KIF1A
  • HSAN IID: SCN9A

Genetics

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Neurological features

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Dermatological features

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Orthopaedic features

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Dental features

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Differential diagnosis

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Nerve conduction studies (NCS)

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Synonym

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References

  1. Mamytova E, Jusupova A, Toktomametova A, et al. A rare case of hereditary sensory and autonomic neuropathy type II. Clin Case Rep 2023; 11:e7015.
  2. Kamath SU, Krishnamurthy SL, Annappa R. Hereditary sensory and autonomic neuropathy type II in a female child with multiple orthopaedic ailments: diagnosis and operative management. Indian J Orthop 2022; 56:1482-1487. 
  3. Schwartzlow C, Kazamel M. Hereditary sensory and autonomic neuropathies: adding more to the classification. Curr Neurol Neurosci Rep 2019; 19:52. 
  4. Romagnuolo M, Moltrasio C, Cavalli R, Brena M, Tadini G. A novel mutation in the SCN9A gene associated with congenital insensitivity to pain, anhidrosis, and mild cognitive impairment. Pediatr Dermatol 2023 (Online ahead of print).

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