[A variant form of Guillain-Barre syndrome: a study of clinical and pathology of sural nerve biopsy].

This study reported four cases of variant of Guillain-Barre Syndrome (GBS). Clinical features showed muscle fasciculation, Fisher Syndrome, GBS with family Leber's disease and idiopathic dysautonomia. There were oligoclonal protein in 3 patients and elevation of protein of CSF in 4 cases. The neurogenic lesion of limb muscle was confirmed by EMG and NCV in all patients. The sural nerve biopsy was characterized by inflammatory demyelination. The diagnosis and pathogenesis were discussed.