-We report on the preliminary clinical and electrophysiological aspects of an in-patient possibly presenting epilepsia partialis continua (Koshevnikov). We discuss the different etiologies and emphasize on the possible idiopathic form in this case.KEY WORDS: epilepsia partialis continua, electrophysiology, symptoms, idiopathic form. Epilepsia parcial contínua (Kojevnikov): relato preliminar de um casoRESUMO -Relatamos os aspectos clínicos e eletrofisiológicos preliminares de um paciente hospitalizado que possivelmente apresenta crises de epilepsia parcial contínua (Kojevnikov). Discutimos as diferentes etiologias dessa condição e salientamos a possível forma idiopática, nesse caso.

The authors present a case of bilateral tonic pupil and discuss clinical and physiopathological aspects of this syndrome. They discuss some elements necessary for the understanding of the etiopathogenesis of the disease.