Acute Disseminated Encephalomyelitis Following Chemoradiotherapy in an Adult Patient With Nasopharyngeal Cancer.

Acute disseminated encephalomyelitis (ADEM) is a monophasic demyelinating disorder predominantly affecting children. It typically follows a viral illness or vaccination. We present a case of a 34-year-old white male treated with chemo-radiotherapy for nasopharyngeal cancer who developed ADEM.