Aneurysm, cavernous carotid artery

A small mass lesion is noted within the left cavernous sinus on both CT and MR (axial imaging), with CT revealing enhancement therein. MRA confirms this to be an aneurysm, with the DSA provided for comparison (from an initial balloon test occlusion study). This 12 mm aneurysm of the cavernous segment of the internal carotid artery was subsequently coiled, without complication.

Aneurysm, cavernous carotid artery

Part of the on-line supplement to Neuroradiology – The Essentials with MR and CT (© 2015)