CASE 92 (October 2013)
A 56-year-old man has suffered head trauma and brain death. He had not medical history. Normal renal function.
Both kidneys are rescued for transplantation and have normal gross appearance except for a subcapsular yellow 7 mm lesion in the convexity near the upper pole.
A frozen biopsy of the lesion is taken. See the images.
Figure 1. A montage to show approximately how was the gross appearance of the lesion.
Figure 2. Transversal section of the real specimen.
Figure 3. H&E, frozen section, X100.
Figure 4. H&E, frozen section, X400.
Figure 5. H&E, X100.
Figure 6. H&E, X200.
Figure 7. Masson's trichrome stain, X200.
Figure 8. Methenamine-silver stain, X100.
Figure 9. Methenamine-silver stain, X200.
What is your diagnosis?
Would you transplant this kidney?