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[Renal angiomyolipoma with marked extrarenal development: a case report]
K Yamamoto1, H Iwasaki, T Nakanouchi
1Department of Urology, Kyoto Prefectural University of Medicine.
Hinyokika Kiyo. Acta Urologica Japonica
|December 10, 1999
Summary
Large renal angiomyolipoma (AML) can be managed with nephron-sparing surgery. This approach is recommended even for tumors with significant extrarenal development, preserving kidney function.
Area of Science:
- Urology
- Oncology
- Radiology
Background:
- Renal angiomyolipomas (AMLs) are benign tumors that can grow large.
- Large AMLs, especially those with extrarenal development, present surgical challenges.
Observation:
- A 28-year-old female presented with a 10 cm left renal tumor.
- Imaging studies suggested a renal angiomyolipoma with significant extrarenal extension.
- The tumor weighed 800g and was pathologically confirmed as AML.
Findings:
- Partial nephrectomy was successfully performed using microwave tissue coagulation without renal artery clamping.
- This nephron-sparing approach was effective for a large AML with extrarenal development.
Implications:
- Nephron-sparing surgery is a viable option for managing large renal angiomyolipomas, including those with extrarenal growth.
- Preserving renal parenchyma should be prioritized in the surgical management of AMLs, regardless of tumor size or extension.