[Table/Fig-1]:

Right double inferior vena cava with preaortic iliac vein confluence. Note the formation of ventral right IVC (VRIVC) by preaortic confluence of right common iliac vein (RCIV) and left common iliac vein (LCIV). The dorsal right IVC (DRIVC) ascend lateral to right common iliac artery (RCIA) in a more dorsal position. Right ureter descends lateral to both IVCs and cross bifurcation of RCIA. AA-Abdominal aorta; LCIA-left common iliac artery; IMA-inferior mesenteric artery; ROA-Right ovarian artery; ROV-Right ovarian vein (cut)