Epstein-Barr virus infection in a woman with aquaporin-4 seropositive neuromyelitis optica.

Neuromyelitis optica spectrum disorders (NMOSD) are characterised by pathological antibodies to aquaporin-4 water channels of astrocytes, resulting in severe brain and spinal cord injury. Serological evidence suggests that Epstein-Barr virus (EBV) reactivation may contribute to their pathogenesis. We describe an unusual case of a woman with fever, rash and headache preceding an Aquaporin-4 antibody positive longitudinally extensive transverse myelitis. EBV was detected in her cerebrospinal fluid by polymerase chain reaction assay. This case highlights the potential role of EBV in the pathogenesis of NMOSD.