Extracranial carotid artery pseudoaneurysm due to Mycobacterium tuberculosis

摘要

Mycobacterium tuberculosis is a very rare cause of extracranial carotid artery pseudoaneurysm. A 39-year-old man presented with a rapidly increasing neck mass and hoarseness of voice for 15 days. He was on antitubercular treatment for pulmonary tuberculosis. Computed tomography angiography showed a large pseudoaneurysm of the right common carotid artery. Emergency surgery was performed to excise the pseudoaneurysm sac and repair the artery with a Dacron graft. Postoperative angiography showed normal flow in the carotids and cerebral circulation. Histology of the excised tissue was consistent with a tubercular etiology of the pseudoaneurysm.