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Transarterial embolization of ruptured angiomyolipoma associated with tuberous sclerosis.

A 29-year-old woman, with a past history of tuberous sclerosis diagnosed in her childhood, presented to our emergency department with the acute symptoms of left flank pain. She had no fever and she was fully conscious with stable haemodynamics. Physical examination revealed facial red bumps, and a knocking pain over the left flank. Laboratory investigation showed mild anaemia but normal liver and renal functions. Computed tomography showed a huge ruptured angiomyolipoma of the left lower kidney. Angiography also revealed a hypervascular tumour at the same location (Figure 1). She was treated with transarterial embolization, which was super-selective to the inferior branch of the left renal artery. Post-embolization angiography showed markedly diminished vascularity of the same lesion (Figure 2). The patient developed post-embolization syndrome consisting of fever, flank pain and vomiting after the embolization procedure. These symptoms subsided after acetaminophen treatment. She was then discharged within 2 weeks. Notably, her renal function remained normal at 6 months follow-up. Discussion