HIPPOCAMPAL SCLEROSIS AND STATUS EPILEPTICUS

ABSTRACT - Background: Transient imaging abnormalities, including changes on diffusion-weighted imag-ing (DWI), may be seen in status epilepticus. These abnormalities can be followed by hippocampal sclero-sis. Case report: We report a 15-year-old lady with focal non convulsive status epilepticus (NCSE) and fo-cal slowing on EEG. DWI exhibited abnormal hyperintense signals in bilateral temporal and insular cortices. After 3 weeks, MRI performed a localizated hippocampal atrophy. Conclusion: The MRI findings indicated vasogenic and cytotoxic edema during seizure activity and subsequent loss of brain parenchyma.KEY WORDS: status epilepticus, magnetic resonance imaging (MRI), diffusion-weighted images, reversible MRI abnormalities, hippocampal sclerosis. Esclerose hipocampal e status epilepticus: causa ou consequencia? Um estudo de RM RESUMO - Introducao: Anormalidades transitorias de imagem, incluindo imagens de ressonância magne-tica por difusao (DWI), podem ser vistas no status epilepticus. Essas anormalidades podem ser seguidas de esclerose hipocampal.