A Report of Successful Surgery for an Aortocaval Fistula with Retroperitoneum Hematoma Due to Ruptured Abdominal Aortic Aneurysm

Abstract

An unusual case of abdominal aortic aneurysm (AAA) with simultaneous rupture in the retroperitoneum and inferior vena cava (IVC) is reported. The patient presented with lower abdominal subcutaneous bleeding and intense lower back pain. An urgent contrast-enhanced computed tomography demonstrated a fusiform infrarenal AAA that was 7.6 cm in diameter. It appeared to be ruptured in the right retroperitoneum. During the arterial phase, the IVC appeared dilated and opacified simultaneously to the aorta through an abnormal communication. The symptoms and treatment are discussed.