Although various morphologic patterns and atypical features of renal oncocytoma have been well documented [43], the typical “high-grade” morphology, as seen in HOT, is essentially beyond the permissible morphology for renal oncocytoma, despite the IHC similarities that include the positive CD117, accompanied by CK7 reactivity restricted to rare scattered cells. Here, KRT7 is linked to kidney oncocytoma.