Preoperative computed tomographic angiogram (CTA) with volume-rendered reconstruction demonstrating the superficial inferior epigastric veins (SIEVs) and their multiple points of crossover, in this case at the arcuate line, immediately infraumbilically, and immediately supraumbilically (Reproduced with permission from: Rozen WM, Pan WR, Le Roux CM, et al. The venous anatomy of the anterior abdominal wall: an anatomical and clinical study. Plast Reconstr Surg 2009;124:848-53).