Isolated atherosclerotic aneurysms of the internal iliac arteries: report of two cases and review of literature.

Isolated arteriosclerotic aneurysms of the internal iliac artery are uncommon, with an incidence approaching 0.4%. Although the symptoms invariably involve the genitourinary or gastrointestinal systems, the aneurysms may be found during abdominal, rectal, or vaginal examinations. The 75% mortality associated with the rupture of an internal iliac aneurysm mandates for early surgery for these aneurysms. Operation may consist of ligation of the internal iliac artery, excision of the aneurysm, or an obliterative endoaneurysmorrhaphy. While the operative mortality has average 33.3%, there were no operative deaths in this series.