what is opsoclonus myoclonus
Deputy Editor. April F Eichler, MD, MPH. Opsoclonus-myoclonus syndrome (OMS), also known as opsoclonus myoclonus ataxia, is a syndrome that includes opsoclonus along with diffuse or focal body myoclonus and truncal titubation with or without ataxia and other cerebellar signs.