CA9 and renal cell carcinoma: ccRCC with papillary growth: CAIX(+, membranous), CK7(−), AMACR(−), Cathepsin-K(−), 34βE12(−), TFE3/TFEB(−)pRCC “type I”: CAIX(−), CK7(+), AMACR(+), Cathepsin-K(−), 34βE12(−), TFE3/TFEB(−)pRCC “type II”: CAIX(−), CK7(+/variable), AMACR(+), Cathepsin-K(−), 34βE12(−), TFE3/TFEB(−)ccPRCC: CAIX(+, cup-like pattern), CK7(+, diffuse), AMACR(−), Cathepsin-K(−), 34βE12(−), TFE3/TFEB(−)MiT-TFE RCC: CAIX(variable, focal), CK7(−), AMACR(+), Cathepsin-K(+, 50%), 34βE12(−), TFE3/TFEB(+, but difficult to standardize on automated platforms, requires FISH assays)