Table 1.

Patient information

Group	Patient no.	Age	Site	T	N	Stage	Number of nuclei
							Normal	Cancer
Training	1	71	Tongue	2	2	IV	555	478
	2	50	Tongue	2	2	IV	158	156
	3	41	Mucosa	1	0	I	260	164
	4	42	Gum	2	2	IV	250	200
	5	44	Gum	1	0	I	102	200
	6	52	Gum	4	2	IV	166	160
	7	64	Tongue	1	0	I	360	400
	8	67	Mucosa	3	0	III	200	179
	9	51	Pyriform sinus	4	2	IV	133	578
	10	56	Gum	2	0	II	333	299
	11	47	Pyriform sinus	3	2	III	255	399
	12	51	Tongue	2	0	II	209	108
	13	56	Mucosa	3	0	III	300	367
	14	63	Palate	2	0	II	432	333
	15	50	Tongue	2	2	IV	589	601
	16	57	Gum	4	2	IV	200	309
	17	52	Tongue	2	0	II	378	678
	18	37	Tongue	1	2	IV	409	561
	19	78	Tongue	2	0	II	444	500
	20	60	Tongue	2	2	IV	400	266
	21	80	Tongue	1	0	I	289	260
	22	52	Palate	2	0	II	178	256
	23	65	Mucosa	2	0	II	300	457
	24	60	Tongue	3	0	III	398	457
	25	34	Tongue	1	0	I	405	302
	26	43	Tongue	2	2	IV	298	390
	27	61	Palate	4	0	IV	203	599
	28	32	Mucosa	1	0	I	592	212
	29	56	Mucosa	1	0	I	402	700
Testing	30	65	Mucosa	2	0	N/A	214	692
	31	41	Tongue	1	0	N/A	299	401
	32	31	Mucosa	1	0	N/A	272	459
	33	48	Tongue	2	3	N/A	393	598
	34	37	Mucosa	2	0	N/A	505	496

The number of nuclei are those in the basal-cell layer

T Tthe size or direct extent of the primary tumor, T1, T2, T3, and T4 The size and/or extension of the primary tumor, N The degree of spread to regional lymph nodes, N0 The tumor cells are absent from regional lymph nodes, N1 The regional lymph node metastasis is present, N2 The tumor has spread to an extent between N1 and N3, N3 The tumor has spread to more distant or numerous regional lymph nodes