Table 1. Clinicopathological characteristics of the patients.

Case ID	Age	Sex	Site	Stage	Diffa	Metab	Delayed metac	TTc (mm)
Case 1	48	M	tongue	T2N2bM0	well	+	−	11
Case 2	66	M	floor of mouth	T2N2cM0	well	+	−	2
Case 3	71	F	tongue	T2N0M0	well	+	+	6
Case 4	69	F	gingiva	T3N0M0	moderate	+	+	4
Case 5	78	F	tongue	T2N0M0	well	+	+	4
Case 6	89	F	gingiva	T2N0M0	well	+	+	10
Case 7	75	F	tongue	T1N0M0	well	+	+	3
Case 8	62	M	tongue	T2N0M0	well	+	+	9
Case 9	61	M	tongue	T2N0M0	well	+	+	7
Case 10	72	M	buccal mucosa	T2N0M0	well	+	+	6
Case 11	72	F	buccal mucosa	T1N0M0	well	+	+	11
Case 12	74	M	floor of mouth	T1N0M0	moderate	+	+	2
Case 13	68	F	buccal mucosa	T4N0M0	well	+	+	2
Case 14	63	M	tongue	T2N0M0	well	+	+	7
Case 15	57	M	tongue	T1N0M0	well	+	+	7
Case 16	76	F	tongue	T1N0M0	well	−	−	4
Case 17	58	M	tongue	T3N0M0	well	−	−	10
Case 18	44	M	tongue	T2N0M0	well	−	−	11
Case 19	71	M	tongue	T2N0M0	well	−	−	5
Case 20	73	F	tongue	T1N0M0	well	−	−	4
Case 21	83	F	floor of mouth	T2N0M0	moderate	−	−	8
Case 22	74	M	tongue	T2N0M0	well	−	−	10
Case 23	80	M	floor of mouth	T2N0M0	well	−	−	6
Case 24	86	F	tongue	T1N0M0	well	−	−	5
Case 25	75	M	tongue	T1N0M0	well	−	−	4

^aDifferentiation.

^bMetastatic neck lymph node.

^cDelayed lymph node metastasis.

^dTumor thickness.