Background: Ascending aortic aneurysms are rare pathologies in childhood, especially in the absence of previous diseases such as Marfan Syndrome.Objective: Present the possibility of successful endovascular management of large vessel aneurysms, using stents and microcatheters with embolization of the aneurysm sac.Method: We present the case of a previously healthy ten-year-old patient, in whom a pseudoaneurysm was documented between the origin of the left common carotid artery and left subclavian artery, successfully managed endovascularly, initially with a stent covering the neck of the aneurysm to remodel it and later with embolization of the aneurysm sac using a microcatheter.Results: Aneurysms of large vessels, such common carotid artery and subclavian artery, are at risk of rupture with devastating complications; endovascular management is considered a minimally invasive management option, with favorable results.Conclusion: The endovascular management of large vessel aneurysms using stents and microcatheters with embolization of the aneurysmal sac is a novel management option that achieves successful results.