A 69-year-old woman with an enlarging ascending aortic aneurysm is pre
sented. At operation, the patient was noted to have extensive peri-ane
urysmal fibrosis and inflammation with a 1 cm thick aneurysm wall. Pat
hologic examination was consistent with inflammatory aneurysm. Inflamm
atory aneurysms of the thoracic aorta are uncommon and this may be the
first patient with this process involving the ascending aorta with bo
th operative and pathologic findings.