summary: This study in 96 patients with neuromyelitis optica (NMO), a condition involving inflammation in the spinal cord and optic nerves, shows that a secondary progressive course is very rare. The authors suggest that this demonstrates a dissociation between relapses and progression in demyelinating conditions.

authors: Wingerchuk DM, Pittock SJ, Lucchinetti CF, Lennon VA, Weinshenker BG

source: Neurology. 2007 Feb 20;68(8):603-5

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category: Epidemiology

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