An 84-year-old woman with back pain was carried to another hospital. Plain computed tomography (CT) showed posterior mediastinal hematoma. Furthermore, enhanced CT showed the suspicion of bleeding from the right intercostal artery. She was transferred to our hospital for treatment. Emergency angiography showed a pseudoaneurysm in the proximal right ninth intercostal artery, and arterial embolization was performed. Her postoperative course was uneventful. Endovascular therapy, rather than operative treatment, is a useful and less invasive option for pseudoaneurysm of the proximal intercostal artery.

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We report a case of inferior pancreaticoduodenal artery aneurysms with chronic occlusion of the celiac artery. A 47-year-old man was admitted to our hospital because an epigastric hypo echoic mass was detected by abdominal ultrasonography during a screening examination. Enhanced abdominal computed tomography revealed two aneurysms at the inferior pancreaticoduodenal artery and total occlusion of the celiac artery. First, we performed bypass grafting from the left renal artery to the splenic artery using retroperitoneal approach. Second, we performed coil embolization of the inferior pancreaticoduodenal artery using interventional radiology techniques. The aneurysms were occluded, and no splanchnic circulatory disturbance occurred.

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