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Lymph nodal involvement by renal angiomyolipoma
I Türker Köksal1, M Tunç, I Kiliçaslan
1Department of Urology, Faculty of Medicine, Istanbul University, Turkey. usta@med.akdeniz.edu.tr
Summary
Kidney angiomyolipoma, a rare benign tumor, was found in a lymph node. This suggests a multicentric origin rather than metastasis, supported by eight years of no recurrence.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Angiomyolipoma of the kidney is a rare benign tumor.
- It is believed to originate from perivascular epithelial cells.
- Diagnosis often involves imaging and pathological examination.
Observation:
- A 40-year-old woman presented with flank pain and a large renal mass.
- Imaging revealed an 18 cm solid kidney mass and enlarged lymph nodes.
- Initial diagnosis was renal cell carcinoma.
Findings:
- The renal mass was diagnosed as angiomyolipoma.
- A component of the angiomyolipoma was found in a dissected lymph node.
- No tumor recurrence was observed during an eight-year follow-up.
Implications:
- The presence of angiomyolipoma in a lymph node may indicate a multicentric origin.
- This finding challenges the traditional view of metastasis in such cases.
- Further genetic studies are needed to confirm the origin and understand the behavior of renal angiomyolipoma.