一側内頸動脈—海綿静脈洞瘻を伴った両側内頸動脈海綿静脈洞部巨大動脈瘤

Bilateral Giant Carotid Aneurysm in the Cavernous Sinus with a Carotid-cavernous Fistula on One Side, Case Report

Ⅰ．緒言

　海綿静脈洞部の特発性両側性動脈瘤の報告はきわめて少なく，Wilson ＆ Myers^17）（1963）は自験1例を加えて計12例を報告し，牧ら^8）（1970）はさらに文献上集収しえた5例と自験1例を加えて計18例を報告している．

　著者らはWilson ＆ Myersの12例以外に文献上9例を加え計21例を集収しえたが，うち両側の巨大動脈瘤（血管撮影上直径2.5cm以上）は8例であり，さらにこの中で一側の特発性内頸動脈海綿静脈洞瘻を伴ったものはわずかに3例のみである．

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)