[Brown-Séquard syndrome caused by foramen and calcified disk herniation, responsible for direct compression of Adamkiewicz's artery].

The thoracic discal hernia is a rare affection whose prognosis has been transformed by the present diagnostic means and the technical progress of surgery. A case history has been reported of a thoracic discal hernia, T9-T10, with Brown-Sequard Syndrome and vertebral CT Scanning showed a left lateral localization. A posterior access remains indicated in lateral localization of those hernias, and it confirms clinical and neuroradiological findings showing a direct compression of the Adamkiewicz artery in the intervertebral foramen.