TABLE 1.

Characteristics of patients and their tumors

Patients
Gender			female – 1, male – 20
Age			57 (38–68)a
Primary tumor site
Oropharynx			12
Hypopharynx			7
Larynx			2
Histopatological grade
Grade 2			15
Grade 3			6
UICC TNM classification
	N1	N2A	N2B	N2C	N3	Total
T1					1	1
T2					3	3
T3					2	2
T4A			3	2	5	11
T4B	1		1	2	1	4
Total	1	0	4	4	12	21
Overall UICC-TNM stage
Stage IVA			6
Stage IVB			15

^aMedian (range), in years