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Polymyositis and pemphigus vulgaris in a patient: successful treatment with rituximab.

AbstractRituximab has been documented to be an effective treatment for autoimmune diseases with contribution of B cells. We report a case of antisynthetase syndrome with a history of EBV-induced lymphoma which developed a pemphigus vulgaris. Rituximab was effective both on polymyositis and on pemphigus. Fifteen months later, the patient died from a septic shock after the first cyclophosphamide infusion for amyloidosis while the B cell population remained depleted. Rituximab may be a good alternative to immunosuppressive drugs in polymyositis and pemphigus especially in lymphoma-risk patients. However, it did not prevent progression to secondary amyloidosis and the fatal infection developed in this patient raises the question of whether a prolonged B cell depletion with rituximab contributes to a greater risk of infection.
AuthorsAnne Tournadre, Stéphanie Amarger, Pascal Joly, Michel d'Incan, Jean-Michel Ristori, Martin Soubrier (Affiliation: CHU Clermont-Ferrand, Rheumatology Department, G. Montpied Hospital, Place H Dunant, BP 69, 63003 Clermont-Ferrand, France. atournadre at chu-clermontferrand.fr)
JournalJoint, bone, spine : revue du rhumatisme (Joint Bone Spine) Vol. 75 Issue 6 Pg. 728-9 (Dec 2008) ISSN: 1778-7254 France
PMID18455465 (Publication Type: Journal Article)