Cerebral toxoplasmosis in systemic lupus erythematosus following intravenous methylprednisolone.

Cerebral toxoplasmosis is a rare complication of systemic lupus erythematosus (SLE). An 18 year old male student, newly diagnosed to have SLE, developed neurological symptoms two days after completing intravenous methylprednisolone. Computed tomography (CT) scan showed features consistent with a diagnosis of probable cerebral toxoplasmosis. He responded dramatically to antitoxoplasma therapy. To our knowledge, this is the first case report in the literature that presents a newly diagnosed SLE patient who rapidly developed cerebral toxoplasmosis following administration of intravenous methylprednisolone. Our case illustrates that this drug is potentially fatal and the importance of differentiating cerebral infection from neuropsychiatric lupus.