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Case 5

Case 5. Basic clinical and pathological data. 64-year-old female Tumor of the kidney in the vicinity of renal hilus 4 x 3 x 3 cm Whitish, well circumscribed. ????. Spider- harvestman. Immunohistochemistry. Negative reactions: EMA, WT1

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Case 5

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  1. Case 5

  2. Basic clinical and pathological data • 64-year-old female • Tumor of the kidney in the vicinity of renal hilus • 4 x 3 x 3 cm • Whitish, well circumscribed

  3. ????

  4. Spider- harvestman

  5. Immunohistochemistry • Negative reactions: EMA, WT1 • Positive reactions: AE1-AE3, weakly CAM 5.2, MIB 1 (Ki 67): 2-10 cells/hpf

  6. Metanephric adenoma

  7. Arroyo 1999: Metanephric tumors group • Metanephric adenoma • Metanephric adenofibroma • Metanephric stromal tumor

  8. Metanephric adenoma • Close relationship to Wilms tumor • Close relationship to papillary RCC • Combinations were rarely described

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