Petrous internal carotid artery (ICA) aneurysms are rare and pose a unique management
dilemma. They are most commonly fusiform. They are difficult to treat surgically and
typically not amenable to selective aneurysmal obliteration. The advent of flow diverters,
such as the Pipeline endovascular device, has offered a new approach to these historically
challenging lesions. The unique utility of flow diversion in treatment of petrous
ICA aneurysms is reviewed and discussed.
Key-words:
Aneurysm - endovascular - flow diversion - internal carotid artery - petrous - pipeline