Open Repair of Isolated Internal Iliac Artery Aneurysm in a Young Patient With Loeys-Dietz Syndrome

Isolated internal iliac artery aneurysms in the absence of aorto-iliac disease are exceedingly rare. The case of a 41 year old woman who presented after experiencing several weeks of lower abdominal pain is reported. She was diagnosed with a large, isolated right internal iliac artery aneurysm.

Patient medical records were reviewed retrospectively. The patient underwent genetic evaluation, after which she was diagnosed with Loeys-Dietz syndrome type I. Given her age and heritable aortic disease, her aneurysm was treated by open surgical repair via a right retroperitoneal approach with an interposition bypass graft. The patient's hospital course was uneventful, and she was discharged home in good condition.

This report demonstrates an open surgical technique to treat an isolated iliac aneurysm in a patient with underlying heritable vascular disease.