Clear cell renal cell carcinoma (ccRCC) shows a rising incidence and mortality worldwide [1,2]. Guideline-implemented cancer staging systems play an essential role in stratifying patients with tumors, especially in terms of therapeutics, prognostic prediction, postoperative follow-up, and even clinical trials. Notably, the T-stage system has shown great relevance in guiding clinical management decisions for ccRCC [3–5]. Hence, accurately predicting T staging preoperatively is crucial for optimiz…