• H Singh, J Thomas, W L E Hoe, and D S Sethi.
• Department of Otolaryngology, Singapore General Hospital, Singapore. harvindersran@hotmail.com
• J Laryngol Otol. 2008 Aug 1;122(8):e18.

ObjectivesWe report a rare case of giant petrous carotid aneurysm.MethodCase report and a review of the literature regarding treatment options for such aneurysms.ResultsA 30-year-old man presented with epistaxis, headaches and visual disturbance. Definitive diagnosis was achieved by non-invasive imaging techniques, including magnetic resonance angiography and carotid angiography. Carotid angiography demonstrated a giant petrous carotid aneurysm effacing the petrous apex. The aneurysm was obliterated by internal carotid artery ligation, following successful tolerance of the balloon occlusion test. However, despite internal carotid artery ligation, this patient continued to have minor episodes of epistaxis.ConclusionSome aneurysms are too large to be treated with endovascular occlusion techniques; in such cases, ligation of the parent vessel is indicated. However, our patient continued to experience persistent, mild epistaxis despite internal carotid artery ligation, as a result of the reperfusion phenomenon.

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