Table 1.

Clinicopathologic features

Characteristic	Number of cases
Age
< 60 years	27
> 60 years	51
Sex
Male	54
Female	24
Tumor site
Larynx	26
Tongue	8
Skin and mucosa	44
Histologic grade
Differentiated (G1)	39
Poorly differentiated (G2, G3)	39
Mode of tumor invasion
Well defined (1 + 2)	18
No distinct border (3)	43
Diffuse invasion (4a + 4b)	17