Cefaleia causada por dissec？？o de artéria vertebral: relato de caso

background and objectives: spontaneous vertebral artery dissection is rare, but it is a very frequent cause of cerebral ischemic accident in young patients. the identification of this disease is paramount for adequate clinical intervention and brain ischemia prevention. case report: female patient, 30 years old, secretary, with ictal presentation of severe and deep cervical pain irradiating to nucha and posterior head, at the same side to the left, which has evolved with headache and cerebral ischemic accident. conclusion: identification and immediate and adequate treatment of arterial dissection may prevent ischemic lesions, thus contributing for better patients' clinical evolution.