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. 2014 Aug;26(4):399-403.
doi: 10.3978/j.issn.1000-9604.2014.07.04.

Embolization of symptomatic renal angiomyolipoma with a mixture of lipiodol and PVA, a mid-term result

Qiang Huang  1 , Ren-You Zhai  1
Affiliations

Embolization of symptomatic renal angiomyolipoma with a mixture of lipiodol and PVA, a mid-term result

Qiang Huang et al. Chin J Cancer Res. 2014 Aug.

Abstract

Objective: To evaluate the clinical effect of renal artery embolization with a mixture of lipiodol and polyvinyl alcohol (PVA) particles on symptomatic renal angiomyolipoma and to present the mid-term results from our single-center site.

Methods: We performed a retrospective review of the seven patients who underwent embolization with a mixture of lipiodol and PVA particles to treat symptomatic renal angiomyolipoma in our center between February 2011 and December 2013. Medical records and follow-up results were reviewed and analyzed.

Results: Seven patients underwent eight episodes of embolization using a mixture of lipiodol and PVA particles to treat symptomatic renal angiomyolipoma. One patient required a subsequent embolization of the right kidney 9 months after the initial embolization of the left kidney. No nephrectomy was required in any of these cases during follow-up. None had recurrence of tumor bleeding or rupture during follow-up. Decreased tumor size was achieved in six patients (85.7%) during the mid-term follow-up.

Conclusions: Embolization with a mixture of lipiodol and PVA particles is an effective and safe treatment for symptomatic renal angiomyolipoma. Based on the durable mid-term results of the present study, a mixture of lipiodol and PVA particles is recommended for embolization.

Keywords: Renal angiomyolipoma; embolization; lipiodol; polyvinyl alcohol (PVA).

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Figures

Figure 1
Figure 1
Renal angiomyolipoma embolized with a mixture of lipiodol and PVA in a 33-year-old female who presented with hematuria. (A) Pre-operative CT shows renal angiomyolipoma with hemorrhage in the lower pole of the left kidney; (B) angiogram demonstrates abnormal vascularity in the lower pole; (C) post-embolization angiography shows the lipiodol remaining in the lesion and the abnormal vascularity was eliminated; (D) CT obtained three months after embolization reveals lipiodol retained in the shrinking tumor. PVA, polyvinyl alcohol; CT, computed tomography.
See this image and copyright information in PMC

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