“…Twenty-seven patients exhibited bleeding [8, 10-14, 16, 17, 19, 21-24, 26, 28, 30, 31, 38, 39, 43, 48, 50, 55, 58, 61], which resulted in death in one case [58]. Ten patients reportedly had di culty with hemostasis during biopsy or surgery [10,22,26,38,48,52,61,63,66] .Three patients underwent preoperative vascular embolization or ligation, which did not lead to complications during surgery [15,19,26]. Our experience with the present patient also indicated that preoperative vascular embolization is helpful in preventing massive hemorrhage during surgery for pulsatile oral metastasis of RCC.…”