PDZK1 and nonpapillary renal cell carcinoma: To investigate whether SERPINH1 is superior in predicting the prognosis of ccRCC patients, we compared it with eight reported biomarkers: HADHA 13, DIABLO 14, PDZK1 9, LDHA 15, BIRC5 16, CA9 17, FSCN2 18 and IMP3 19.