MYOF and nonpapillary renal cell carcinoma: Furthermore, although, T stage is considered a valuable prognostic factor, in the present study, 5 patients with advanced T1 stage primary ccRCC, of whom 3 had Fuhrman nuclear grade 3 (high) and 2 had Fuhrman nuclear grade 2 (low), also had Hyper-MYOF (Table 4).