Combined Post-traumatic Pseudoaneurysms of the Superior Gluteal and Aberrant Obturator Arteries: A Case Report.

Post-traumatic pelvic vascular injuries are rare complications of blunt trauma, but they can be serious. Arterial pseudoaneurysms are rare and may be difficult to diagnose because of delayed presentation and the complex pelvic vascular anatomy. Post-traumatic pseudoaneurysms of the superior gluteal artery, as those associated with particular anatomical variants like aberrant obturator arteries, are rare. They can further complicate diagnosis and management. We report the case of a 14-year-old patient admitted with abdominal pain and signs of sepsis after pelvic trauma caused by a fall. An angiogram revealed the presence of bilateral retroperitoneal hematomas without active bleeding. Due to a deterioration in the patient's clinical condition, an exploratory laparotomy was performed to drain the hematomas and irrigate the peritoneal cavity; no active bleeding was observed. Postoperative CT angiography (CTA) demonstrated two pseudoaneurysms arising from the superior gluteal artery and the unilateral aberrant obturator artery. The patient remained hemodynamically stable, and a conservative management strategy accompanied by close clinical and radiological monitoring was established, leading to spontaneous thrombosis of the two pseudoaneurysms and a favorable clinical outcome.