Idiopathic iliac arterial aneurysms in a child.

Arterial aneurysms are very rare in children, especially those who have no history of cardiac or vascular malformation, connective tissue disorder, or trauma. We describe a 3-year-old boy who had multiple arterial aneurysms of the left external iliac artery with a maximal diameter of 67 mm, with no history of these disorders. The iliac artery distal to the aneurysm and superficial femoral artery were occluded causing the growth disturbances of his left leg. He underwent graft replacement of the left iliac artery using a ringed Gore-Tex graft (6 mm in diameter). Postoperative angiogram showed a patent graft without any residual aneurysm in the left iliac artery. His ankleibrachial index improve from 0.2 to 0.6 after surgery.