Surgical Repair of a Giant Isolated Inflammatory Aneurysm of the Left Common Iliac Artery

Isolated aneurysms of the iliac artery (IA) are very rare. Inflammatory aneurysms are also rare conditions, making the association rarer. Only four cases of isolated inflammatory IA aneurysms have been reported in the last decade. In this article, we report a case of a 62-year-old patient with a 13-cm large isolated inflammatory aneurysm of the left common IA associated with a 2.5-cm right common IA involvement. The patient presented with a left lower quadrant pain, a pulsatile mass with bruit, as well as a left hydronephrosis secondary to the ipsilateral ureter entrapment, and a motor and sensory deficit of the left lower extremity. An aortoiliofemoral prosthetic repair associated to a left to right ureteral transposition was undertaken with an approach including a laparotomy and bilateral femoral artery exposure. The postoperative period was uneventful. The case mentioned in this study is probably the largest IA aneurysm ever described.