Staging	Tumor	Node	Metastasis	5-year survival rate*
I	T1: tumor confined to kidney a: ≤ 4 cm b: > 4 cm and ≤ 7 cm	N0	M0	81%
II	T2: tumor confined to kidney a: > 7 cm and ≤ 10 cm b: > 10 cm	N0	M0	74%
III	T1 or T2: tumor confined to kidney	N1	M0	53%
	or
	T3: tumor extension a: into the renal vein or segmental branches or invades perirenal and/or renal sinus fat but does not invade beyond Gerota fascia b: into the vena cava below the diaphragm c: into the vena cava above the diapragm or invades the wall of the vena cava	N0 or N1	M0
IV	T4: tumor invades ipsilateral adrenal gland or beyond Gerota fascia	Any N	M0	8%
	or
	Any T	Any N	M1