BACKGROUND: Spinal cord involvement in Beh?et's disease is not well studied.
OBJECTIVE: To evaluate the clinical, laboratory and magnetic resonance imaging characteristics of spinal cord involvement in Beh?et's disease.
METHODS: We retrospectively reviewed 10 spinal cord involvements in seven patients with Beh?et's disease.
RESULTS: The median age of onset for spinal cord involvement was 32 (23-45 years). Two patients showed a secondary progressive course. Cerebrospinal fluid findings revealed mild to moderate pleocytosis and/or elevated protein levels. In eight spinal cord involvements, the lesion was longer than three vertebrae. Serum anti-aquaporin-4 antibody was negative in all four patients tested.
CONCLUSIONS: Longitudinally extensive transverse myelitis is a characteristic manifestation of spinal cord involvement in Beh?et's disease.