A Case of an Unruptured Intercostal Artery Aneurysm

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  • 基礎疾患を有さない未破裂肋間動脈瘤の1治験例

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Abstract

<p>Intercostal artery aneurysms have been reported to occur in some underlying diseases such as neurofibromatosis, and rupture of an intercostal aneurysm can be life-threatening. It is very rare to see intercostal artery aneurysms without any associated conditions. We report this case and review the literature. A 69 year old man presented with right lumbar pain and a contrast enhanced CT scan was carried out. The cause of the lumbar pain was not revealed, but resolved spontaneously. The patient was diagnosed with a left intercostal artery aneurysm. He had no medical history, no operations or trauma, no family history, and the physical findings were unremarkable. He had no skin lesions. The thoracoabdominal CT scan did not detect any other aortic or visceral artery aneurysms. We performed coil embolization, and the postoperative course went uneventfully. 5 years later, there is no enlargement of the aneurysm, and he remained asymptomatic. Endovascular management of intercostal artery aneurysms has performed successfully in some of the patients reported in the literature. Most of these reports were treatments for ruptured aneurysms, and sometimes it is difficult to perform coil embolization because of vessel fragility due to underlying diseases. We successfully embolised an unruptured aneurysm using endovascular technique. This case report suggests that some patients may have intercostal artery aneurysms without any underlying diseases, but there is no criteria for the intercostal aneurysms. Further researches are needed.</p>

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