In a few cases there exists an abnormal anastomosis between the external iliac and the obturator vessels
called the corona mortis4,10,14.
The distal extent of the lymph node packet is divided, retracted cranially, and bluntly separated from the obturator vessels
Branches of the obturator vessels and of the deep femoral artery of thigh were dissected out.
The nerve to obturator externus muscle, arising from the intrapelvic obturator nerve before it splits into divisions, crosses the obturator artery and descends between the obturator vessels.
On the other hand, major bleeding from the iliac or obturator vessels
requires immediate resuscitation and open intervention intraoperatively, with immediate postoperative arterial embolization under radiographic control.