Oncocytoma: CD117(+, membranous), CK7(−), Ksp-cadherin(+), HMB-45(−), Cathepsin-K(−)Eosinophilic chRCC: CD117(+, membranous), CK7(+, but variable), Ksp-cadherin (+, mostly), HMB-45(−), Cathepsin-K(−)Oncocytic PRCC: CD117(−), CK7(+, focal), Ksp-cadherin (unknown), HMB-45(−), Cathepsin-K (unknown)Oncocytic AML: CD117(−), CK7(−), Ksp-cadherin(−), HMB-45(+, focal), Cathepsin-K(−). The gene discussed is PMEL; the disease is acute myeloid leukemia.