Nephropathology Since 2006
Case 167
With discussion
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CASE 167 (January 2020)

Clinical information

In a 56-year-old woman with end-stage renal disease of unknowed cause, treated with hemodialysis for 8 years, a left renal mass was discovered during a workup for abdominal pain. There is no history of other tumoral lesions. There are not other relevant antecedents. In the right kidney there is not tumoral lesions. The patient underwent a nephrectomy.

See the images.

Figure 1. Necrotic-looking mass, replacing almost the entire kidney. Non-tumor parenchyma with poor corticomedullary differentiation and cysts.

Figure 2. H&E, X100. Necrotic tissue.

Figure 3. H&E, X200.

Figure 4. H&E, X200.

Figure 5. H&E, X200.

Figure 6. H&E, X200.

Figure 7. H&E, X200.

Figure 8. H&E, X200.

Figure 9. H&E, X200.

Figure 10. H&E, X200; Polarized light microscopy.

Figure 11. H&E, X200; Polarized light microscopy.

Figure 12. H&E, X200; Polarized light microscopy.

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