Table 3.

AJCC tumor, node, metastasis (TNM) 2010 cSCC criteria.

Stage	Designation
	Primary tumor	Regional lymph node	Distant metastasis
0	Tis	N0	M0
I	T1	N0	M0
II	T2	N0	M0
III	T3	N0	M0
	T1	N1	M0
	T2	N1	M0
	T3	N1	M0
IV	T1	N2	M0
	T2	N2	M0
	T3	N2	M0
	T any	N3	M0
	T4	N any	M0
	T any	N any	M1