Measles-induced Acute Disseminated Encephalomyelitis in a Non-vaccinated Patient

We reported a case of measles-induced acute disseminated encephalomyelitis (ADEM) in a 40-year-old immunocompetent adult. The patient presented a week after the development of respiratory symptoms and a cutaneous rash, and was admitted to hospital for altered mental status. Blood tests showed hyperleukocytosis, thrombopenia and cytolysis. A lumbar puncture was consistent with acute meningitis and the patient was initially treated with antiviral and wide broad-spectrum antibiotics. Serology and PCR for measles came back positive. LEARNING POINTS Acute disseminated encephalomyelitis (ADEM) associated with measles infection is not uncommon.Clinical suspicion must be based on the presence of measles infection or recent vaccination.A normal CT scan does not rule out the disease but magnetic resonance imaging (MRI) is not required to confirm the diagnosis.