Carotid-cavernous fistulas embolized with conservation of the arterial circulation: a case reportA case of carotid cavernous fistula of high flow by rupture of intracavernous aneurysm with similar intracavernous aneurysm not ruptured is reported. Good results were obtained by muscle embolus technique controlled by a thread, with preservation of the circulation of the carotid artery. The author emphasizes the simplicity of this technique and comments other techniques registered in the literature.