1. All of the following are helpful in differentiating an oncocytoma from a chromophobe RCC EXCEPT:

2. Electron microscopy of a mass from the kidney shows 150-300 nm clear vesicles, this tumor would most specifically stain for which of the following:

3. The best diagnosis for the renal rumor depicted in the following image(s) is:

4. The best diagnosis for the renal tumor depicted in the following image(s):

5. Which of the following is the best answer for the renal tumor depicted in the following image:

6. Fuhrman grading is important for all of the following tumors EXCEPT:

7. Which of the following is the best diagnosis for the renal lesion pictured in the following image(s):

8. The best diagnosis for the renal rumor depicted in the following image(s):

9. All of the following markers are positive in renal cell carcinoma (clear cell type) EXCEPT:

10. In which of the following, is Fuhrman grading the most prognostic:

11. Differentiation of the eosinophilic variant of clear cell renal cell carcinoma from a chromophobe renal cell carcinoma can sometimes be very difficult. All of the following may be helpful tool in this differentiation EXCEPT:

12. What is the best Fuhrman Grade for a conventional clear cell renal cell carcinoma with an area pictured in the following image(s):

13. Papillary (Chromophil) Renal Cell Carcinoma is associated with all of the following chromosomal abnormalities EXCEPT: