A case of bilateral optic neuropathy and recurrent transverse myelopathy associated with perinuclear anti-neutrophil cytoplasmic antibodies (p-ANCA).

A case involving a 52-year-old man having bilateral optic neuropathy and recurrent transverse myelopathy is reported. His clinical features resembled multiple sclerosis, but neuroimaging failed to show evidence of demyelination or inflammation in the brain or the optic nerves. The patient experienced sudden visual loss despite massive steroid therapy. Positive perinuclear anti-neutrophil cytoplasmic antibody (p-ANCA) is suggestive that optic neuropathy and recurrent transverse myelopathy may have been caused by some common inflammatory processes associated with p-ANCA, however, having a different etiology from multiple sclerosis.