Partial Nephrectomy for a Massive Sporadic Renal Angiomyolip
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Abstract

Introduction :
Angiomyolipomas are the most common benign tumor of the kidney, associated with Tuberous Sclerosis in 20% of cases and arising sporadically in 80% of cases. Renal angiomyolipomas are neoplasms of mesenchymal origin with varying proportions of vasculature, smooth muscle spindle cells, and adipocytes, making management of such neoplasms a challenging endeavor. Possible management options include partial or radical nephrectomy and segmental renal artery embolization.

Case Presentation :
A 61-year-old woman admitted for a large retroperitoneal hemorrhage was discovered to have a giant, sporadic, 3818.3?g, 30.0 × 26.5 × 18.0?cm left perinephric angiomyolipoma. Given her hemodynamic instability upon presentation, she underwent segmental arterial embolization, followed by an open left partial nephrectomy. Ten-month follow-up revealed no noticeable loss of renal function.

Discussion :
Literature review revealed occasional renal angiomyolipomas of comparable size, with all angiomyolipomas larger than this requiring treatment with radical nephrectomy. Conclusion. We show that nephron-sparing surgery may be considered in the treatment of even the largest of renal angiomyolipomas.....

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5192326/
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