Using an antibody panel composed of MKI67, CRP, CA9, HIF1A and HIF2A, Abel et al. [65] sought to assess the expression patterns of these proteins in a TMA comprising ccRCC (n = 42), pRCC (n = 11), and chRCC (n = 1) tumors and NATs, and link these results to clinicopathological outcomes. The gene discussed is PRCC; the disease is chromophobe renal cell carcinoma.