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Intracranial aneurysm as an incidental finding

¹ Oral and Maxillofacial Radiology, University of Florida College of Dentistry, Gainesville, FL, USA; ² Department of Radiology, University of Florida College of Medicine, Gainesville, FL, USA

*Correspondence to: M K Nair, University of Florida, Box 100414, JHMHC, Gainesville, FL 32610-0414, USA; Email: nairmk{at}radiology.ufl.edu

Received 9 December 2005; accepted 9 February 2006

This report presents an incidental finding of a potentially life-threatening large fusiform aneurysm of the internal carotid artery at the level of the posterior communicating artery in a patient who reported with complaints relating to the presence of a radiolucent lesion in the mandible that was diagnosed as odontogenic keratocyst. This case highlights the need to study a case in detail in preparation for prescribing the appropriate advanced imaging modality examination, and also to carefully evaluate the entire imaged volume for incidental pathology and not just the region of interest. This report assumes significance in the light of widespread use of cone beam CT by dental clinicians for routine diagnostic tasks without a formal interpretation being carried out on all such studies.

Keywords: aneurysm; carotid; cone beam; computed tomography (CT); angiography; arteriography