Changpeng Cui; Qiuhuan Zhao; Zice Zhou; Jiayi Cheng; Chengyi Zhang; Xiaoliu Liu & Mingzhe Li

This report presents a case of double inferior vena cava (DVIC), anomalous origin of the interiliac vein, and early branching of the left renal artery sandwiching double left renal veins in a single male cadaver. In the cadaver, DIVC and an interiliac vein with anomalous origin were identified: the latter collected blood from the right pelvic cavity, anastomosed with the right internal iliac vein and right common iliac vein to form a venous circuit, and finally drained into the left inferior vena cava. Additionally, anomalous structures at the left renal hilum were observed, mainly characterized by early branching of the left renal artery, with complex crossing relationships among the resulting segmental arteries, double left renal veins, and renal pelvis. This paper details these anatomical variations and discusses their possible embryological evolution mechanisms and relevant clinical significance. Since these anatomical variations affect the outcomes and prognosis of retroperitoneal space and pelvic surgical procedures, familiarity with the knowledge of renal vascular and inferior vena cava anomalies is crucial for surgeons.

KEY WORDS: Interiliac vein; Inferior vena cava; Renal artery; Renal vein.

CUI, C.; ZHAO, Q.; ZHOU, Z.; CHENG, J.; ZHANG, C.; LIU, X. & LI, M. Abnormal origin of the double inferior vena cava with the interiliac vein and anomalous structure of the left renal hilum in a human cadaver. Int. J. Morphol., 44(2):654-659, 2026.