Neuromyelitis optica with CSF examination mimicking bacterial meningomyelitis.

Neuromyelitis optica (NMO) is a rare inflammatory demyelinating disease of the central nervous system that causes severe attacks of optic neuritis and myelitis. Abnormal CSF findings are one of the characteristics of NMO that help to distinguish it from classical multiple sclerosis. Here we describe two cases of Devic's syndrome with CSF findings suggestive of bacterial meningomyelitis.