Urology Case Reports (Jan 2022)

Nephrolithiasis associated with embolization material, Lipiodol®, following embolization of large renal angiomyolipoma

  • Irene Chen,
  • Sara Q. Perkins,
  • Scott E. Schwartz,
  • David Leavitt

Journal volume & issue
Vol. 40
p. 101910

Abstract

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Angiomyolipoma (AML) is a benign renal mass that can be treated with nephron sparing surgery or transarterial embolization. Embolization has been favored due to efficacy and safety profile. This case demonstrates a previously undocumented phenomenon of AML treated with transarterial embolization using Lipiodol® (Guerbet LLC, Princeton, NJ) resulting in nephrolithiasis and retention of Lipiodol® two years after original embolization. Although Lipiodol®-based embolization has not been shown to cause nephrolithiasis, it may have been the nidus for stone formation, and this is an important potential complication worthy of further study.

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