Table 2.

Patient and tumor characteristics

Age (years)	Range	29–85
	Mean	58
Sex	male	40
	female	3
T classification	T1	4
	T2	19
	T3	10
	T4	10
N classification	N0	19
	N1	13
	N2	10
	N3	1
Histological grade	G1	6
	G2	33
	G3	4
Tumor localization	Tonsils	13
	Tongue	7
	Tongue and floor of the mouth	14
	Palate	2
	Lips	1
	Base of the tongue and tonsils	6