• Anmol Dhillon, Celso Velazquez, and Chokkalingam Siva.
• Division of Rheumatology, Department of Internal Medicine, University of Missouri, 1 Hospital Drive, DC 043.00, CE 327, Columbia, MO 65212, USA. dhillona@health.missouri.edu
• Rheumatol. Int. 2012 Dec 1; 32 (12): 3707-13.

AbstractRheumatologic diseases have varied clinical presentations, and posterior reversible encephalopathy syndrome (PRES) can be one of their presentations. The exact etiology of PRES is unknown, but endothelial dysfunction and immunosuppressive medications seem to be the likely cause in rheumatologic diseases. Clinical features include headaches, seizures, altered mental status, cortical blindness, vomiting, and focal neurologic deficits. The diagnosis of PRES can be difficult because several neuropsychiatric illnesses are generally prevalent in rheumatologic diseases; however, a high index of suspicion among physicians along with neuroimaging can help in the accurate diagnosis. Treatment guidelines are lacking, but in a few case series, lowering the blood pressure, controlling the seizures, and removing the immunosuppressive drugs have shown good results. There is need for randomized controlled trials addressing the treatment of PRES in rheumatologic diseases. Medline search was done from year 1950 to March 2011 using "posterior reversible encephalopathy" as keyword, and articles relevant to rheumatology were reviewed. We found 48 case reports showing PRES in patients with rheumatologic disease. Most of the patients were female. Age range was from 6 to 59 years. Out of the 48 case reports, 38 patients had systemic lupus erythematosus and most of them had renal disease. Five patients with autoimmune diseases presented with PRES after being started on immunomodulatory drugs. The most frequent symptoms were headache, seizures, and visual changes.

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