CASE 46 (December 2009)
In a 23-year-old woman, in her first pregnancy, oligohydramnios and diffusely polycystic enlarged fetal kidneys, without ultrasonographic liver abnormalities or other malformations, were detected at week 34.
Stillbirth. On autopsy the fetal weight was 2,200 g.
See the images of the kidneys and liver.
Figure 1. Macroscopic image of the kidneys and the liver (upper).
Figure 2. On cut, both kidneys showed this appearance.
Figure 3. Left: a closer image of the external surface; right: closer image of a section.
Figure 4. H&E, X40.
Figure 5. H&E, X100.
Figure 6. H&E, X100.
Figure 7. H&E, X200.
Figure 8. H&E, X200.
Figure 9. H&E, X200.
Figure 10. Methenamine-silver, X200.
Figure 11. Liver: left X40, right, X200; both: Masson's trichrome stain.
What is your diagnosis?