Sclérose en plaques rémittente ou encéphalomyélite multiphasique disséminée ?

introduction. The imaging presentation of some forms of multiple sclerosis may be misleading. In patients with a history of recent infection or vaccination, especially for adolescents or young adults, the differential diagnosis with acute disseminated encephalomyelitis can be difficult. Case report. We report an unusual clinical and radiological presentation of multiple sclerosis, mimicking acute disseminated encephalomyelitis. We discuss clinical and radiological differential diagnosis, and the outcome after immunosuppressive treatment. Conclusion. Distinguishing between acute disseminated encephalomyelitis and the first relapse of multiple sclerosis can be diffficult. Brain imaging is a precious tool for differentiating between the two diseases.