IngentaConnect Unusual Representation of a Common Iliac Artery Double Aneurysm

Abstract:

This case discusses an unusual representation of a 3.1-cm double aneurysm of the right common iliac artery with an ectatic distal abdominal aorta. The patient was a 64-year-old asymptomatic male who participated in a routine ultrasound screening at his church. On the basis of the findings, a full ultrasound study was ordered and conducted at the request of his primary physician. The patient's history included smoking cessation in 1975. He currently had hypertension and hyperlipidemia. He was physically active and ran 40 miles per week until developing right Achilles tendonitis. Because of this injury, the patient biked daily. The patient's medications included atenolol and daily vitamins. The ultrasound findings revealed two aneurysms of the right common iliac artery. Both areas were fusiform and measured 3.1 and 2.9 cm, respectively. The dilation extended to the right internal iliac artery. The left common iliac was mildly dilated and kinked to the left. There was mild enlargement of the distal abdominal aorta measuring 3.4 cm by ultrasound and 3.1 cm by computed tomography angiogram. There is no evidence of internal thrombus. Usually asymptomatic, iliac artery aneurysms can be lethal if large (above 3.0 cm) and undetected. With appropriate, timely intervention the aneurysm can be safely repaired before rupture. Various aneurysm treatment options include conventional open abdominal surgery or endovascular stent graft placement with coil embolization. This patient discussed options with the vascular surgeon and was scheduled to have a cardiac catheterization with right internal iliac coil embolization. Staging of the endovascular graft was planned to follow. This case presents the uncommon finding of a large iliac artery aneurysm. This patient's disease was made more unusual by the presence of two distinct aneurysms present within the same vessel. It further reinforces the common practice of fully examining patients with aneurismal disease bilaterally and over multiple levels as a significant portion of patients have multilevel disease.

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