D. Renal cell carcinoma, papillary type
In general, renal cell carcinomas account for approximately 3% of all adult malignancies. In the United States, there are approximately 35,000 new cases per year.
The tumor is found in all ethnic groups, though there may be a higher incidence among African-Americans. Also, men appear to be more commonly affected than women. The chromosomal and genetic abnormalities in renal cell carcinomas appear to be associated with specific histopathological patterns.
Staging of the tumor at the time of diagnosis is associated with clinical behavior and survival.
1. Cheville JC, Lohse CM, Zincke H, et al. Comparisons of outcome and prognostic features among histologic subtypes of renal cell carcinoma. Am J Surg Pathol. 2003;27:612-624. PubMed