Table 3.

Clinicopathological Features of 64 OSCC Patients

	Characteristic	No. of Patients
Total		64
Median age (Years)		71 (31-91)
Gender	Male	37
	Female	27
Site	Tongue	29
	Gingiva	20
	Buccal mucosa	4
	Floor of mouth	5
	Palate	2
	Sinus	1
	lip	2
	Pharynx	1
T-grades	T1	11
	T2	23
	T3	18
	T4	12
Metastasis
	Negative	43
	Positive (lymp. N., Post ope)	17
	(Neck )	4
Mode of invasion#	YK-1	6
	YK-2	12
	YK-3	27
	YK-4C	14
	YK-4D	5

^# Yamamoto-Kohama´s mode of invasion; see referrence [27]