Double renal arteries originating from the aorta

Area of Science:

• Anatomy
• Urology
• Vascular Surgery

Background:

• Renal vascular anatomy presents significant variations.
• Understanding these variations is crucial for surgical and interventional procedures.
• Double renal arteries are a notable anatomical anomaly.

Purpose of the Study:

• To document the incidence and characteristics of double renal arteries.
• To analyze their origin, course, and termination patterns.
• To identify coexisting uro-vascular variations.

Main Methods:

• Retrospective analysis of 54 cases with double renal arteries.
• Detailed examination of aortic origin, renal hilum/polar entry, and anatomical course.
• Documentation of associated anomalies in renal vasculature and ureters.

Main Results:

• 54 cases of double renal arteries were identified, mostly unilateral (42 cases) with left predominance.
• The supplementary renal artery most commonly originated laterally from the aorta (58%) and entered the kidney via the hilum (28%).
• Variations included retroureteral passage, anterior caval course, and coexistence with double renal veins, ureters, and genital artery origins.

Conclusions:

• Double renal arteries are a frequent finding with diverse anatomical presentations.
• Awareness of these variations is essential for urological and vascular interventions.
• Associated uro-vascular anomalies further highlight the complexity of renal vascularization.