We present a patient in whom retrosplenial tumour was associated with epileptic symptoms characterized by complex partial seizures and widespread interictal and ictal epileptiform EEG abnormalities. The patient had verbal memory deficit symptoms as well. After surgical removal of the tumour (oligoastrocytome) the clinical symptoms and EEG signs disappeared. The characteristics of our patient demonstrate the possible role of the retrosplenial area in widespread epileptic symptoms and in the regulation of secondary bilateral synchrony, in addition to its recently described importance in the memory functions.