Posterior reversible encephalopathy syndrome following a scorpion sting

Luiz Carlos Porcello Marrone, Bianca Fontana Marrone, Felipe Kalil Neto, Francisco Cosme Costa, Gustavo Gomes Thomé, Martin Brandolt Aramburu, Lucas Porcello Schilling, Tharick Ali Pascoal, Giovani Gadonski, Antônio Carlos Huf Marrone, Jaderson Costa da Costa
Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging 2013, 23 (4): 535-6
Posterior reversible encephalopathy syndrome (PRES) is a clinicoradiologic entity not yet understood, that is present with transient neurologic symptoms and particular radiological findings. The most common imaging pattern in PRES is the presence of edema in the white matter of the posterior portions of both cerebral hemispheres. The cause of PRES is unclear. We report a case of 13-year-old male who was stung by a scorpion and developed a severe headache, visual disturbance, and seizures and had the diagnosis of PRES with a good outcome. Numerous factors can trigger this syndrome, most commonly: acute elevation of blood pressure, abnormal renal function, and immunosuppressive therapy. There are many cases described showing the relationship between PRES and eclampsia, transplantation, neoplasia and chemotherapy treatment, systemic infections, renal disease acute, or chronic. However, this is the first case of PRES following a scorpion sting.

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