Case 113
With discussion
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CASE 113 (July 2015)

Clinical information

The patient is a 41-year-old woman with constitutional symptoms. Among the many studies undertaken to determine its cause, pyuria and microscopic hematuria were found in the urinary sediment, and, by ultrasonography, a ill-defined mass was evidenced on the renal upper pole of the left kidney.

A biopsy of the mass was obtained. See the images.

Figure 1. H&E, X200.

Figure 2. H&E, X400.

Figure 3. H&E, X400.

Figure 4. H&E, X400.

Figure 5. H&E, X400.

Figure 6. H&E, X200.

What is your diagnosis?

See diagnosis and discussion