Fulminant rebound of relapsing-remitting multiple sclerosis after discontinuation of dimethyl fumarate: A case report.

ABSTRACT

BACKGROUND: Rebound phenomena after discontinuation of different treatments for relapsing-remitting multiple sclerosis (RRMS) have previously been described. Systematic database research in PubMed did not show any report with relapse directly associated with dimethyl fumarate (DMF) cessation. CASE PRESENTATION Here, we report on a 38-year-old Caucasian male patient suffering from a relatively mild course of RRMS who developed a fulminant clinical rebound 2 months after discontinuation of DMF therapy. Radiological alterations presented impressively with primarily spinal involvement. The patient received intensive care and multiple immunomodulating therapies. CONCLUSION: We report on this case to raise neurologist's awareness of complications of basic therapy discontinuation in RRMS.