A rare bifurcation of the external iliac artery into femoral and deep femoral arteries. 2022

Konstantinos Natsis, and Trifon Totlis, and Iasonas Dermitzakis, and George Paraskevas, and Maria Piagkou
Department of Anatomy and Surgical Anatomy, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.

OBJECTIVE The current cadaveric report describes a quite rare unilateral bifurcation of the external iliac artery (EIA) into two femoral arteries (FAs) of almost equal diameter and parallel course, at the level of the inguinal ligament (IL). METHODS The variant FAs were identified on a 75-year-old formalin-embalmed female cadaver, derived from a body donation program after a signed informed consent. RESULTS The EIA bifurcated into a FA and a deep femoral artery (DFA). The DFA extremely high origin was identified at the IL level. Both lateral and medial circumflex femoral arteries originated from the DFA. CONCLUSIONS The in-depth knowledge of the FA variant origin is of paramount importance to vascular surgeons and interventional radiologists during vessel catheterization and attempts to interpret the angiographic findings. In particular, the DFA's high origin from the EIA and the coexistence of two FAs in a parallel course may pose problems to clinicians during angiographic procedures leading to diagnostic errors. The DFA high origin may also complicate femoral arterial and venous puncture and femoral nerve blocks, due to the close neurovascular relationship. There is a possibility for the FA to be mistaken for a vein leading to accidental intra-arterial injection and consequently thrombosis. Thus, variable arterial pattern is important to be identified preoperatively using Doppler ultrasound imaging.

UI MeSH Term Description Entries
D007083 Iliac Artery Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs. Deep Circumflex Iliac Artery,Arteries, Iliac,Artery, Iliac,Iliac Arteries
D005260 Female Females
D005263 Femoral Artery The main artery of the thigh, a continuation of the external iliac artery. Common Femoral Artery,Arteries, Common Femoral,Arteries, Femoral,Artery, Common Femoral,Artery, Femoral,Common Femoral Arteries,Femoral Arteries,Femoral Arteries, Common,Femoral Artery, Common
D005557 Formaldehyde A highly reactive aldehyde gas formed by oxidation or incomplete combustion of hydrocarbons. In solution, it has a wide range of uses: in the manufacture of resins and textiles, as a disinfectant, and as a laboratory fixative or preservative. Formaldehyde solution (formalin) is considered a hazardous compound, and its vapor toxic. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p717) Formalin,Formol,Methanal,Oxomethane
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D001012 Aorta, Abdominal The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries. Abdominal Aorta,Abdominal Aortas,Aortas, Abdominal
D013848 Thigh The superior part of the lower extremity between the HIP and the KNEE. Thighs

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