Endosaccular coil embolization assisted by stent placement for internal carotid artery pseudo-aneurysm after trans-sphenoidal surgery for pituitary adenoma: a case report.

Abstract

Purpose: Internal carotid artery (ICA) pseudo-aneurysm is a rare complication after trans-sphenoidal surgery (TSS) for pituitary adenoma. A patient with ICA pseudo-aneurysm treated by endosaccular coil embolization assisted by stenting is reported.
Case presentation: A 68-year-old man presented with pituitary adenoma and bilateral hemianopsia. Cerebral angiograms showed a broad neck aneurysm arising from the C4 portion of the right ICA. The diagnosis was a post-traumatic pseudo-aneurysm that developed 12 years after TSS. It was treated via the endovascular approach, using a stent to preserve the ICA flow and coil embolization. Post-embolization angiograms showed complete occlusion of the aneurysm and preservation of the parent artery.
Conclusion: Endosaccular coil embolization assisted by stenting was found to be a suitable alternative treatment for traumatic pseudo-aneurysm.