1. Quiz Page September 2009 American Journal of Kidney Diseases
American Journal of Kidney Diseases 
Volume 54, Issue 3, Pages A41-A44 (September 2009)
DOI: /j.ajkd
Copyright © 2009 National Kidney Foundation, Inc. Terms and Conditions

2. Figure 1
Upper abdomen computed tomographic scan with contrast injection. A 2 x 2-cm round lesion is visible at the corticomedullary junction in the middle third of the left kidney. (A) The lesion is isodense to the renal parenchyma (thin arrows), with (B) weak peripheral contrast enhancement in the late parenchymal phase (thick arrow).
American Journal of Kidney Diseases  , A41-A44DOI: ( /j.ajkd )
Copyright © 2009 National Kidney Foundation, Inc. Terms and Conditions

3. Figure 2
Light microscopy of hematoxylin and eosin staining. Branching vascular lacunae (thin arrows) with hemangiopericytoma-like aspects show an organoid cell growth pattern (original magnification x10).
American Journal of Kidney Diseases  , A41-A44DOI: ( /j.ajkd )
Copyright © 2009 National Kidney Foundation, Inc. Terms and Conditions

4. Figure 3
Light microscopy of toluidine blue staining. Eosinophilic granular cytoplasm is shown (original magnification x20).
American Journal of Kidney Diseases  , A41-A44DOI: ( /j.ajkd )
Copyright © 2009 National Kidney Foundation, Inc. Terms and Conditions

5. Figure 4
Immunohistochemical staining is positive for (A) vimentin and (B) CD34.
American Journal of Kidney Diseases  , A41-A44DOI: ( /j.ajkd )
Copyright © 2009 National Kidney Foundation, Inc. Terms and Conditions

6. Figure 5
Transmission electron microscopy, (A) lower and (B) higher magnification, shows electron-dense cytoplasmic secretory granules of different shapes.
American Journal of Kidney Diseases  , A41-A44DOI: ( /j.ajkd )
Copyright © 2009 National Kidney Foundation, Inc. Terms and Conditions