Anomalous Retro-Psoas Iliac Artery: A Case Report

Abstract

The anomalous retro-psoas iliac artery is an extremely rare congenital iliolumbar vascular anomaly. A 51-year-old woman presented to our emergency department with worsening right lower extremity pain and weakness for 3 months. CT angiography of the right lower extremity showed no evidence of stenosis in the lower extremity arteries and the incidental finding of an anomalous right retro-psoas iliac artery. Herein, we report a rare case of anomalous retro-psoas iliac artery. Surgeons and clinicians need to be aware of this rare congenital anomaly to avoid severe complications during pelvic or orthopedic surgery.

Anomalous retro-psoas iliac artery in a patient with Guillain-Barre syndrome: case report

“…The anomalous iliac artery was right sided in all but one of the reported cases, in which it was left sided, as reported by Mizuki Ozawa et al [6]. Clinically, ve of the cases were asymptomatic, while the remaining three presented with lower extremity claudication and pain [1,4,9]. In our patient, the anomalous iliac artery was on the right side, the patient's symptoms were attributed to the clinical and radiological diagnosis of Guillain-Barre syndrome, rather than the presence of the anomalous artery.…”

“…The external iliac artery crosses under the inguinal ligament to continue as the common femoral artery to supply the lower limbs. The internal iliac artery gives multiple branches at the upper sacral region to supply the pelvic viscera and muscles [4].…”

“…Embryologically the fth pair of lumbar intersegmental arteries remain as the common iliac arteries while most of the intersegmental lumbar arteries become lumbar arteries [4]. The embryological basis for the retro-psoas artery variation is not yet fully understood, partially due to the scarcity of published cases in that regard.…”

“…Iliac artery anomalies are rather rare, the most common iliac artery anomaly is persistent sciatic artery with iliofemoral aplasia, which presents as a pulsatile mass in the gluteal region with absence of the femoral artery pulse [2,4]. The retro-psoas iliac artery is an extremely rare anatomical variant, with only eight reported cases in the literature in total [1, 3-7, 9, 10].…”

Anomalous Retro Psoas Iliac Artery in a Patient with Guillain-Barre Syndrome: Case Report

“…Iliac artery anomalies are rather rare, the most common iliac artery anomaly is persistent sciatic artery with iliofemoral aplasia, which presents as a pulsatile mass in the gluteal region with absence of the femoral artery pulse [1,2]. The retro-psoas iliac artery is an extremely rare anatomical variant, with only eight reported cases in the literature in total [2][3][4][5][6][7][8][9]. Most of the patients are asymptomatic and the anomalous artery is detected incidentally during imaging.…”