Neuromyelitis optica in the old age: a clinico-pathological contribution.

We present a case of neuromyelitis optica (NMO) in a previously healthy 64-year-old woman. While CT scan and MRI investigations of the brain as well as myelography were normal, CSF revealed a pathological increase of IgG. Notwithstanding an intensive steroid therapy the patient died after 4 1/2 months. Microscopic examination showed, besides extensive demyelination of the optic nerves and spinal cord (especially in its cervico-dorsal tract), several small demyelinating plaques in the white matter of the pons and near the right lateral ventricle. These findings confirm once again that NMO is a clinical variant of multiple sclerosis and that this disease may make it first appearance at an old age.