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Clinical Problem Solving: Radiology
May 17, 2010

Radiology Quiz Case 1: Diagnosis

Author Affiliations

Copyright 2010 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2010

Arch Otolaryngol Head Neck Surg. 2010;136(5):520. doi:10.1001/archoto.2010.60-b

Diagnosis: Postinfectious aneurysm of the petrous internal carotid artery (ICA)

Aneurysms of the ICA usually develop in its cervical course because of atherosclerosis. Those originating from the petrous segment are rare, and their true incidence is unknown. The etiologic factors include trauma, infection, congenital causes, and atherosclerosis.1,2