Thoracic aortic aneurysm in the presence of mediastinal and retroperitoneal fibrosis.

Inflammatory aneurysms of thoracic aorta are rare. Of all the aneurysms, only 5-10% are inflammatory in nature and are almost exclusively confined to the infrarenal segment of the aorta. We hereby present a patient with a large inflammatory aneurysm involving the thoracic aorta in association with mediastinal fibrosis and idiopathic retroperitoneal fibrosis.