Intracranial Arterial Aneurysms in the Carotid Canal

Aneurysms of the cranial division of the internal carotid artery may arise (1) in the carotid canal and (2) within the cranium. There may or may not be differences in the signs and the symptoms of the two types, and the surgical attack which has been developed in the past few years may or may not be the same for both. The only symptomatic difference between aneurysms in these two locations is that many of those in the cavernous sinus produce disturbances of the trigeminal nerve while those of the intracranial portion do not. Nearly all aneurysms in the carotid canal are amenable to operative treatment with minimal risk; those in the intracranial division may or may not be curable, depending on the exact relation to the branches at the circle of Willis. I am concerned in this publication only with the arterial aneurysms in the carotid canal, particularly with