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Internal Carotid Artery - Giant Aneurysm

A 46 year-old man developed progressive left sided headache associated with palsies of left cranial nerves III, IV, and VI.

Outline the Aneurysm

Cerebral angiogram, left internal carotid injection (Left: AP view; Right: Oblique view). Note the giant aneurysm arising arising from the cavernous portion of the internal carotid artery. In this case, the aneurysm caused neurologic symptoms not from bleeding, but from mass effect on the cranial nerves that ran through the cavernous sinus.

Revised 05/01/06.
The Electronic Curriculum is copyrighted 1998,  Case Western Reserve University School of Medicine.