<unk><unk><unk>  and motor neuronopathy, often abbreviated FOSMN, is an extremely rare disease characterised by<unk>  and motor loss beginning in the face and spreading to involve an increasingly larger area including the upper arms. Details of the disease, and in particular its aetiology, are currently subject to debate, mainly because FOSMN syndrome is so rare. FOSMN was first described in four patients in 2006 and subsequently in a further six patients but so far, these ten represent the only reported cases.
Facial onset sensory and motor neuropathy
Progressive bulbar palsy
Tropical neuropathy
Multifocal motor neuropathy
Diabetic neuropathy
Subacute myelo-optic neuropathy
Recurrent painful ophthalmoplegic neuropathy
Acute motor axonal neuropathy