Multiple Saccular Ascending Aortic Aneurysm Presenting Pathological Features of Takayasu Arteritis

Abstract

A 45-year-old male was referred to our hospital due to multiple saccular ascending aortic aneurysms, and underwent replacement of the ascending aorta at an early stage. During operation, we observed multiple saccular aneurysms (projection length 5 to 25 mm) without infection. Histopathological examination of the aneurysmal wall showed a true aneurysm, which had fibrous thickening of the intima and adventitia, and medial thinning with necrosis and inflammatory cell infiltration. These findings were compatible with Takayasu arteritis. Multiple saccular ascending aortic aneurysms are very rare, and this is the first report that showed multiple saccular ascending aortic aneurysms associated with Takayasu arteritis.