Petrosal approach for a large right posterior cerebral artery (P2) aneurysm.

A seven year old girl presented with recurrent headaches Computed tomography (CT) magnetic resonance imaging (MRI) and angiography showed a 2 cm aneurysm at the P2 segment of the right posterior cerebral artery. The aneurysm was trapped successfully by a petrosal approach. The patient made an excellent recovery except for a transient fourth nerve palsy.