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Onyx Embolization of Sporadic Angiomyolipoma

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Abstract

Percutaneous embolization is the currently preferred treatment of symptomatic or ruptured renal angiomyolipomas (AMLs). Alcohol, microparticles, and coils are usually used. We present what is to our knowledge the first case of successful embolization of a solitary sporadic AML with the use of a new nonadhesive liquid embolic agent (ethylene vinyl alcohol copolymer; Onyx). Onyx injection was slow and controllable and achieved complete tumor devascularization, producing a characteristic appearance like a vascular cast. Short-term follow-up magnetic resonance imaging showed complete tumor necrosis without any recurrent pathologic vessels. The specific features, potential advantages in AML treatment, and technical limitations of this new liquid embolic agent are discussed.

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Authors and Affiliations

  1. Department of Interventional Radiology, Guy’s and St. Thomas’ Hospital, NHS Foundation Trust, Westminster Bridge and Lambeth Palace Road, SE17EH, London, UK

    Konstantinos Katsanos, Tarun Sabharwal, Farhan Ahmad, Renato Dourado & Andreas Adam

  2. Patras University Hospital, Patras, 26504, Greece

    Konstantinos Katsanos

Authors
  1. Konstantinos Katsanos
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  2. Tarun Sabharwal
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  3. Farhan Ahmad
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  4. Renato Dourado
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  5. Andreas Adam
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Correspondence to Konstantinos Katsanos.

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Katsanos, K., Sabharwal, T., Ahmad, F. et al. Onyx Embolization of Sporadic Angiomyolipoma. Cardiovasc Intervent Radiol 32, 1291–1295 (2009). https://doi.org/10.1007/s00270-008-9481-7

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  • DOI: https://doi.org/10.1007/s00270-008-9481-7

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