This case nicely demonstrates the distribution of extraperitoneal hemorrhage on CT tracking into the retroperitoneum. It is important to be able to distinguish this pattern of hemorrhage from intraperitoneal hemorrhage which usually implies injury to an intraperitoneal structure such as the liver, spleen or mesentery. While no active arterial bleeding is seen on this CT study, arterial injury is certainly not excluded and pelvic embolization would still be considered if there is hemodynamic concern. Often fragile clot temporarily stops arterial bleeding at the time of scan masking an arterial injury requiring embolization.