Neck Node Tables

Primary Site	T Stage	N0, %	N1, %	N2-N3, %
Oral tongue	T1	86	10	4
	T2	70	19	11
	T3	52	16	31
	T4	24	10	66
Floor of mouth	T1	89	9	2
	T2	71	18	10
	T3	56	20	24
	T4	46	10	43
Retromolar trigone/anterior tonsillar pillar	T1	88	2	9
	T2	62	18	20
	T3	46	21	33
	T4	32	18	50
Soft palate	T1	92	0	8
	T2	64	12	24
	T3	35	26	39
	T4	33	11	56
Tonsillar fossa	T1	30	41	30
	T2	32	14	54
	T3	30	18	52
	T4	10	13	76
Base of tongue	T1	30	15	55
	T2	29	14	56
	T3	26	23	52
	T4	16	8	76
Oropharyngeal walls	T1	75	0	25
	T2	70	10	20
	T3	33	22	44
	T4	24	24	52
Supraglottic larynx	T1	61	10	29
	T2	58	16	26
	T3	36	25	40
	T4	41	18	41
Hypopharynx	T1	37	21	42
	T2	30	20	49
	T3	21	26	54
	T4	26	15	58
Nasopharynx	T1	8	11	82
	T2	16	12	72
	T3	12	9	80
	T4	17	6	78


		Clinical Neck Stage
Primary Site	N0 Neck	N+† Neck	Overall
Nasopharynx	2/5 (40%)	12/14 (86%)	74%
Pharyngeal wall	6/37 (16%)	12/56 (21%)	19%
Soft palate	1/21 (5%)	6/32 (19%)	13%
Tonsillar region	2/56 (4%)	14/120 (12%)	9%
Pyriform sinus or postcricoid area	0/55 (0%)	7/81 (9%)	5%
Base of tongue	0/31 (0%)	5/90 (6%)	4%
Supraglottic larynx	0/87 (0%)	4/109 (4%)	2%

	Radiotherapy Alone		Radiotherapy Plus Neck Dissection
Stage	No. of Heminecks	Control	No. of Heminecks	Control	Significance
N1	215	86%	38	93%	P = .28
N2a	29	79%	24	68%	P = .6
N2b	138	70%	80	91%	P <.01
N3a	29	33%	40	69%	P <.01