Anterior choroidal artery aneurysms (AChoAA) represent 2–5% of intracranial aneurysms. As with other aneurysms of the supraclinoid segment of internal carotid artery (ICA) they are considered rather easily accessible surgical goals. Nevertheless, the tight anatomical relations between ICA, its main branches and perforating branches make it a surgically demanding area. The problematic feature might be the position and number of the arteries themselves. Also, the relationship between the artery and the aneurysm is critical, as the vessel might be distorted or completely hidden by the sac.