Nephrometry score correlated with tumor proliferative activity inT1 clear cell renal cell carcinoma—the tiger in the tall grasses versus the cat in plain sight

The authors Kikuchi et al. (1) aimed to correlate radiological risk stratification with the Ki-67 biomarker. In this article, the authors evaluated 145 pathological T1 clear cell renal cell carcinomas (RCC) and compared their renal nephrometry score (RNS) with tumor proliferative activity, as assessed by the Ki67 index and microvessel density.