Early detection of a new pseudoaneurysm from an alternative feeder after emergent embolization for ruptured giant renal angiomyolipoma: A case report

Renal angiomyolipomas (AMLs) may rupture and cause life-threatening hemorrhage. We report a man in his 40s with a ruptured giant renal AML who underwent emergent transarterial embolization after contrast-enhanced computed tomography demonstrated a pseudoaneurysm. Although initial hemostasis was achieved and he remained clinically stable, follow-up computed tomography performed 5 days later revealed a newly apparent 20-mm pseudoaneurysm arising from an alternative feeder, requiring repeat embolization. This case suggests that early postprocedural contrast-enhanced computed tomography may be useful in selected patients with ruptured giant or multifocal AMLs and high-risk vascular morphology.