Management of symptomatic renal angiomyolipomas by embolization

Renal angiomyolipomas are benign tumors which occur commonly in association with tuberous sclerosis or as isolated lesions. Symptomatic angiomyolipomas, particularly those in patients with tuberous sclerosis, should be approached conservatively with the goal of preserving as much normal renal tissue as possible. We report 2 patients in whom selective embolization was used to achieve this goal.