Selective Arterial Embolizations of Renal Angiomyolipomas Using 96% Ethanol: A Case Series of 5 Patients.

Rosenov, Alexander; Schindewolf, Marc; Baumgartner, Iris; Saely, Christoph (2020). Selective Arterial Embolizations of Renal Angiomyolipomas Using 96% Ethanol: A Case Series of 5 Patients. Clinical medicine insights. Case reports, 13, p. 1179547620906863. Sage Publications 10.1177/1179547620906863

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Angiomyolipomas are rare benign tumors of the kidneys, with a risk of spontaneous hemorrhage including severe retroperitoneal bleedings. In this study, we report clinical outcomes of 5 patients who underwent 8 embolization sessions using 96% ethanol, as there is scarce data using this embolic agent for this indication. The primary angiographic success could be achieved in all but 1 lesion, which was not accessible due to vasospasm of the supplying vessel. Therapeutic success could be demonstrated in all treated cases for which follow-up imaging was available (n = 3). In 1 complex patient, a mildly reduced renal function, as well as a new onset of arterial hypertension was detected after treatment. Nontarget embolization of vital kidney tissue was demonstrated in another patient; it remained asymptomatic. Embolization therapy using 96% ethanol is an optional method to treat renal angiomyolipomas.

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