Regional Failures after Selective Neck Dissection in Previously Untreated Squamous Cell Carcinoma of Oral Cavity

Table 2

Clinical and pathological staging of patients according to AJCC guidelines.

Stage	Clinical number (𝑁)	Percent (%)	Pathological number (𝑁)	Percent (%)
T stage
T0	—	—	8	4
T1	65	29	97	44
T2	98	45	81	37
T3	28	13	13	6
T4	28	13	20	9
N Stage
N0	158	72	114	52
N1	34	16	32	14
N2a	6	3	0	0
N2b	16	7	67	31
N2c	5	2	5	2
N3	0	—	1	1
Overall stage
0	—		6	3
I	53	24	55	25
II	70	32	38	17
III	46	21	32	15
IV	50	23	88	40