Primary Surgical Therapy for Locally Limited Oral Tongue Cancer

Table 2

Incidence rate of positive nodal disease relative to the infiltration depth of small carcinomas of the mobile tongue.

Infiltration depth	Number of patients (%) with overall positive nodal disease by infiltration depth
<2 mm	3/15 (20)
<3 mm	8/30 (26.6)
<4 mm	16/54 (29.6)
<5 mm	20/68 (29.4)
<6 mm	28/92 (30.4)
<7 mm	32/106 (30.2)
<8 mm	42/128 (32.8)