MOG antibody-related disease with recurrent optic neuritis and sensory polyradiculoneuropathy: A case report.

Myelin oligodendrocyte glycoprotein (MOG) antibody-related diseases are inflammatory demyelinating conditions of the central nervous system (CNS) that induce a broad spectrum of symptoms. Since MOG is expressed exclusively in the CNS, the lesions are thought to be confined to the CNS. However, few cases of MOG antibody-related disease involve the peripheral nervous system (PNS); the mechanisms underlying such PNS involvement remain unclear. We herein present the case of a patient with MOG antibody-related disease with recurrent optic neuritis and sensory polyradiculoneuropathy unaccompanied by CNS lesions. Our report presents a novel phenotype of PNS involvement in MOG antibody-related disease.