Neuralgia trigeminal associada a artéria trigeminal primitiva

Publicado na 1ª edição de 2008

The trigeminal neuralgia or tic douloureux is a frequent painful condition in which the pathophysiological mechanism is poorly understood. Trigeminal neuralgia is sometimes described as the most excruciating pain known to humanity. It is the most common cause of neuralgic facial pain in the geriatric population. The vast majority of the cases of trigeminal neuralgia are considered idiopathic. In around 1% of the patients with trigeminal neuralgia, a structural lesion is disclosed during the neuroimaging evaluation, mainly in the region of the trigeminal nerve path from the brainstem to its entrance in the skull base. In such cases, either a tumor or a vascular compression over the nerve is considered the etiological agent. In the literature, a few cases of trigeminal neuralgia have been reported in association with persistence of the primitive trigeminal artery. This article intends to present a case of a woman with trigeminal neuralgia in whom the presence of the primitive trigeminal artery (PTA) was disclosed during the investigation.

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