Atypical motor neuron disease variant: facial-onset sensory and motor neuronopathy syndrome (FOSMN)


Creative Commons License

Özenç B., Odabaşı Z., Tan E.

Egyptian Journal of Neurology, Psychiatry and Neurosurgery, cilt.58, sa.1, 2022 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 1
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1186/s41983-022-00597-0
  • Dergi Adı: Egyptian Journal of Neurology, Psychiatry and Neurosurgery
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, Academic Search Premier, Arab World Research Source, EMBASE, Directory of Open Access Journals
  • Anahtar Kelimeler: FOSMN, Neuronopathy, Dysphagia, Motor neuron disease (MND)
  • Hacettepe Üniversitesi Adresli: Evet

Özet

© 2022, The Author(s).Background: Facial-onset sensory and motor neuronopathy (FOSMN) is a rare disease whose cardinal features are initial asymmetrical facial sensory deficits slowly evolving and followed by bulbar symptoms and spreading of sensory and motor deficits from face to scalp, neck, and extremities. Case presentation: We described a 70-year-old man who presented with 6-month history of facial numbness on the left side, and gradual worsening of symptoms. Over several months, facial muscle weakness, dysarthria, and fasciculation had progressed. NCS, needle EMG and blink reflex responses suggested the diagnosis of FOSMN. The ganglioside panel (anti-GM1 and Gd1b) was positive. Considering the FOSMN autoimmune pathology hypothesis, IVIG treatment was given. Conclusion: In this case, we aimed to highlight the key clinical aspects of FOSMN and how to differentiate it from motor neuron disease and bring FOSMN to the attention of neurologists as a recently recognized and distinctive disorder.