Table 3.

Evaluation of distant metastasis in ccRCC xenografts

Number of cells injected	Time for tumor of 1 cm3	Micrometastasis	Macrometastasis	Number of cells injected	Time for tumor of 1 cm3	Micrometastasis	Macrometastasis
Caki‐1 parental				Caki‐1 spheres
106	27 days	−	−	106	19 days	+	−
104	63 days	+	−	104	53 days	+	+
102	101 days	−	−	102	83 days	+	−
769P parental				769P spheres
106	−	n.a.	n.a.	106	28 days	+	−
104	−	n.a.	n.a.	104	46 days	+	+
102	−	n.a.	n.a.	102	69 days	+	−

n.a., not assessed because of the absence of primary tumor.