Laparoscopy - Laparoscopic Trocar Placement with Iatrogenic Injury to Iliac Artery and Vein. Shows the initial placement of the trocars through the abdominal skin of an obese woman. A cut view of the pelvic region allows visualization of the trocar penetrating the vessels at the back of the abdominal cavity. The final cutñaway view of the abdomen identifies the perforation sites in the iliac artery and massive hemorrhage.