Anat Cell Biol.  2019 Dec;52(4):518-521. 10.5115/acb.19.159.

Bilateral multiple renal arteries with an extra-aortic origin and quadruple testicular veins

• Lee HB
• Yang J
• Maeng YH
• Yoon SP

• KMID: 2466706
• DOI: http://doi.org/10.5115/acb.19.159

Abstract

Although variations in the urogenital vessels are relatively common, a rare case of asymmetric bilateral multiple renal arteries originating not only from the aorta but also from the testicular artery was found in a 75-year-old Korean male cadaver. Three renal arteries arose from the lateral aspect of the abdominal aorta on the right side and four from the left side. Two additional renal parenchymal branches originated from the left testicular artery, accompanied by a pair of veins out of the four testicular veins on the left side. Embryological development of the urogenital vessels is of particular importance for anatomists and clinicians.

Keyword

Multiple renal arteries; Extra-aortic; Gonadal vein; Anatomical variation

MeSH Terms

Aged
Anatomists
Aorta
Aorta, Abdominal
Arteries
Cadaver
Humans
Male
Renal Artery*
Veins*

Figure

• 

  Fig. 1 Bilateral multiple renal arteries and quadruple testicular veins before (A) and after (B) reflection of the inferior vena cava (IVC). The renal arteries were designated R1 to R3 from the highest to the lowest on the right side and, similarly, L1 to L6 on the left side. R2 and R3 showed precaval courses. L5 (C) and L6 (D) originated from the left testicular artery (rectangle, B) and penetrated the renal parenchyma, which was confirmed by histopathological examination (H&E, ×100). The right testicular vein drained into the inferior vena cava (dotted arrow, A), whereas the left quadruple testicular veins drained into the left renal vein (dotted arrows, A), accompanied by L5 and L6, respectively. Arrows indicate testicular arteries. a, artery; AA, abdominal aorta; IMA, inferior mesenteric artery; RV, renal vein; U, ureter; v, vein.

• 

  Fig. 2 Schematic drawing of the variations of the urogenital vessels. (A) Additional renal arteries arose from the abdominal aorta (AA) bilaterally and from the left testicular artery (TA). The renal arteries were designated R1 to R3 from the highest to the lowest position on the right side and, similarly, L1 to L6 on the left side. (B) The left quadruple testicular veins (TVs) drained into the left renal vein (RV), accompanied by additional left renal arteries that arose from the testicular artery. IVC, inferior vena cava; U, ureter.

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