Since Sir Gilbert Blane's report of a case in the year 1800, bilateral
aneurysms of the internal carotid artery within the cavernous sinus of nontraumatic origin are extremely rare. In reviewing literatures, only 22 cases have been described, including the present case (Table 1). We are reporting our own case in which carotid angiograms revealed the presence of bilateral giant
aneurysms with a
carotid-cavernous fistula on one side, and discussed briefly with reference to its clinical features, radiological observations and treatment. (case report) M.R, a woman aged 78, was admitted on May 15, 1973, with a complaint of sudden onset of right supra- and
periorbital headache and a loud bruit about 2 months previously. She became aware of ptosis of the right eyelid and prominence of the right eyeball. The carotid arteriogram showed bilateral giant
aneurysms in the region of the cavernous sinus (Fig 2, Fig. 3). A
carotid cavernous fistula due to the ruptured giant
aneurysm was seen on the right and poor filling of the right anterior and middle cerebral artery was also observed (Fig. 2). An attempt was made to close the
fistula by using propelling method (
polyurethane foam emboli after Ohta's technique) with great success (Fig. 4). No special treatment was done to the left giant
aneurysm. She is now in good condition 7 months after discharge.