Venous drainage of the groin flap.

The superficial circumflex iliac vein and the venae comitantes of the superficial and deep circumflex iliac arteries are studied by dissection of 43 Formalin-fixed cadavers. The local peculiarities of their ends as well as their caliber, course, and symmetry are pointed out. A large venous trunk present in 35 percent of cases that receives the drainage of the venae comitantes of the superficial circumflex iliac artery is described.