• Jose-Alberto Palma, Asier Gomez-Ibañez, Beatriz Martin, Elena Urrestarazu, Ignacio Gil-Bazo, and Maria A Pastor.
• Department of Neurology and Neurosurgery, University Clinic of Navarra, School of Medicine, University of Navarra, Pamplona, Spain. jpalmaca@unav.es
• Neurologist. 2011 Sep 1; 17 (5): 273-5.

BackgroundReversible posterior leukoencephalopathy syndrome (PRES) is a relatively uniform clinical and neuroradiologic manifestation of central nervous system toxicity. The clinical features are headache, altered mental status, and visual disturbances. PRES is often associated with arterial hypertension but it is most usually related to drug toxicity. In fact, it has been related to immunosupressants, cytotoxic, and new antineoplastic-targeted therapies such as sorafenib, sunitinib, bevacizumab, bortezomib, rituximab, and etanercept.Case ReportWe describe a most unusual case of nonconvulsive status epilepticus related to PRES induced by cetuximab in a patient with metastatic squamous cell carcinoma of the penis.DiscussionThis case emphasizes that in any patient receiving treatment with anti-epidermal growth factor receptor agents and showing a compatible clinical syndrome, PRES should be suspected. We also review the clinical and neuroradiologic features of PRES, discuss its' pathogenesis, and highlight the importance of rapid recognition and withdrawal of the causative agent.

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