Introduction: Carotid bifurcation aneurysms represent 2 to 9% of intracranial aneurysms¹. They can be treated by endovascular or microsurgical techniques³, the latter being the most complex^1-4 and used with low frequency in this type of aneurysm⁷.

Clinical case: A 57-year-old woman with a ruptured aneurysm of the right carotid bifurcation, incidentally, another small unruptured aneurysm of the left posterior communicating was found. She underwent a mini-pterional interfascial approach and aneurysm clipping with satisfactory results and a favorable evolution.

Conclusion: Aneurysms of the carotid bifurcation are not frequent; this is a non-common case due to the age of 57 years. The technique performed allowed the identification of the aneurysm, as in the classical pterional approach, but trying to minimize morbidity. The patient did not present post-surgical complications despite the risk factors presented, such as unbroken contralateral aneurysm, edema due to subarachnoid hemorrhage and arterial hypertension.