AR and nonpapillary renal cell carcinoma: To evaluate the predictive value of AR for the prognosis of Xp11.2 tRCC patients, the AR expression of 46 cases of Xp11.2 tRCC and 13 cases of ccRCC was detected by IHC, and the results showed that 26 (56.5%) cases of Xp11.2 tRCC and four (30.8%) cases of ccRCC were positive for AR (p = .101; Figure 1K).