Fig. 5From: Autonomic dysreflexia associated with cervical spinal cord gliofibroma: case reportSeizure mechanism. Vasoconstriction below the injury level and vasodilation above the injury level was caused by t created using Adobe Illustrator. he spinal cord injury above the Th6 cord. This vascular tone gap caused abnormal hypertension, dilated pupils, headaches, sweating, and flushing. This figure was created using Adobe IllustratorBack to article page