RESUMO
We present a 14-yr-old male with a history of traumatic brain injury in March 2016, secondary to clonic tonic generalized seizures. CT scan showed hemorrhage at mesial temporal region in the body of right hippocampus, intraventricular hemorrhage at the level of lateral ventricles (right and left side) and fourth ventricle. After this the patient presented with pulsating right temporal headache of high intensity (VAS 10/10) that improved with common analgesics, dizziness, and clonic tonic generalized seizures despite taking Phenobarbital 100 mg/24 h. Neuropsychological assessment reveal major deficits regarding executive functions: working memory, verbal fluency, and planning abilities. Brain MRI and angiography showed AVM at the right level of hippocampus body. An intranidal aneurysm was also observed. Venous drainage was through the basal vein of Rosenthal. We planned for surgery and resection of the hippocampal AVM through the trans-T2 approach. Postoperatively, the patient was without medical complications. We present a 3-dimensional video of the microsurgical treatment for right hippocampal AVM performed through a trans-T2 approach. The patient signed the Institutional Consent Form, which allows the use of his/her images and videos for any type of medical publications in conferences and/or scientific articles.