TABLE 1

Tumor Stage and TNM Classification as Defined by AJCC/UICC in the Patients Studied

Age (y)	Tumor stage		TNM classification
Age (y)	Stage	n	Class	n
<45	I (any T, any N, M0)	23	T1 Nx	8
			T1 N0	7
			T1 N1	3
			T2 NX	1
			T2 N0	2
			T3 N0	2
	II (any T, any N, M1)	1	T3 N1	1
>45	I (T1, N0, M0)	20	T1 Nx	16
			T1 N0	4
	II (T2, N0, M0)	4	T2 NX	2
			T2 N0	2
	III (T3, N0, M0 or T1–3, N1a, M0)	7	T3 Nx	2
			T3 N0	3
			T2 N1a	1
			T3 N1a	1
	IVA (T4a, N0–1a, M0 or T1–4, N1b, M0)	1	T3 N1b	1
	IVB (T4b, any N, M0)	0
	IVC (any T, any N, M1)	1	T3_a N0	1