Post-surgical pseudoaneurysm of the corona mortis artery treated by arterial embolization from two arteries: A case report

Abstract

Post-surgical pseudoaneurysm in the pelvis is rare. However, when it does occur, it may cause life-threatening hemorrhage. Hemostatic treatment for pelvic pseudoaneurysms may be complicated because the blood vessels in the pelvis may present with various anastomoses. Herein, we describe a case of a pseudoaneurysm that necessitated embolization of two arteries. A 47-year-old woman had undergone a total hysterectomy, a bilateral adnexectomy, and a pelvic lymphadenectomy for endometrial cancer; 13 days after surgery, she complained of sudden abdominal pain. Contrast-enhanced computed tomography revealed a retroperitoneal hematoma and a pseudoaneurysm with contrast leakage. The pseudoaneurysm had two feeding arteries (from the external and internal iliac systems). The first feeding artery was the obturator artery, which arose from the anterior trunk of the internal iliac artery. The second feeding artery was the aberrant obturator artery, which arose from the medial femoral circumflex artery. Both feeders were embolized and hemostasis was achieved. Pseudoaneurysms in the pelvis may have double origins from the external and internal iliac systems, and the aberrant obturator artery may arise from the medial femoral circumflex artery. Therefore, radiologists should be aware of these variations to effectively address post-surgical pseudoaneurysms of the corona mortis artery.

Keywords

• Corona mortis
• Embolization
• Medial femoral circumflex artery
• Obturator artery
• Pseudoaneurysm