Bilateral Tongue Bite during Epileptic Seizure: Nomenclature and Mechanism

Unilateral tongue bite is a well known phenomenon during an epileptic event. This may occur in the absence of a demonstrable cerebral lesion. We report the first case of bilateral tongue bite during seizure in a patient with left parietal arteriovenous malformation. We discuss its significance, nomenclature, and mechanism. A 15-year-old male with the diagnosis of the left parietal arteriovenous malformation presented with new onset partial seizure with secondary generalization. His mother reported blood on his face which she thought might be due to facial injury.