The CRP-level correlated significantly with the tumour stage: 19.3, 30.2, and 63.2% of all patients with a CRP ≤4, 4–10, and >10 mg/l suffered from locally advanced (pT ≥ 3, Nany, Many) RCC at the time diagnosis (p < 0.001, Chi2 test). Here, CRP is linked to renal cell carcinoma.