Analysis of the Role of Selective Neck Dissection in Clinically Node-Positive T3/T4 Oral Cancers

Table 2

Pathological lymph node distribution by T stage.

pT stage		pN; (%)	Ia; (%)	Ib; (%)	IIa; (%)	IIb; (%)	III; (%)	IV; (%)	V; (%)	Total
T3	N+	30 (66.7%)	5 (11.1%)	21 (46.7%)	20 (44.4%)	2 (4.4%)	7 (15.6%)	1 (2.2%)	0 (0%)	45
	N0	15 (33.3%)	40 (89.9%)	24 (53.3%)	25 (55.6%)	43 (95.6%)	38 (84.4%)	44 (97.8%)	45 (100%)
T4	N+	53 (59.6%)	15 (16.9%)	35 (39.3%)	33 (37.1%)	5 (5.6%)	15 (16.9%)	2 (2.2%)	6 (6.7%)	89
	N0	36 (40.4%)	74 (83.1%)	54 (60.7%)	56 (62.9%)	84 (94.4%)	74 (83.1%)	87 (97.8%)	83 (93.3%)