Abstract

With the advancement of complex surgical operations, iatrogenic pseudoaneurysms are relatively commonly encountered in clinical practice. Patients may present with sentinel bleeding or delayed hemorrhage, which may be easily overlooked.¹ The aneurysmal sac is typically walled by a single soft tissue layer and sustained by the arterial blood pressure; its rupture is unpredictable and represents a major complication.²
Unlike true aneurysms that have all three arterial wall layers, pseudoaneurysms develop due to disruption of intimal and medial layers of the arterial wall and do not contain any epithelized wall.³ They are outlined by thin fibrous tissue and usually surrounded by periarterial hematoma. Noninvasive imaging techniques for identifying visceral vascular abnormalities include ultrasonography (US), CT, and magnetic resonance (MR) imaging.
Pseudoaneurysms can be treated with surgery or endovascular intervention. In this report, we describe a case of a large pseudoaneurysm noted in branch of superior gluteal artery, that was successfully treated with endovascular coil embolization