Figure 1From: Circulating endothelial cells are an early predictor in renal cell carcinoma for tumor response to sunitinib Levels of CEC are elevated in metastatic RCC patients. Baseline levels of CEC in metastatic RCC patients were significantly elevated compared to normal controls (CTR) (P = 0.0001). Mean values for CEC were 8 ± 8 and 49 ± 44/ml in CTR and RCC patients, respectively.Back to article page