TABLE I.

Clinical and Pathological Information.

Variable	No. of Patients (%)
Gender, n = 22
Female	2 (9)
Male	20 (91)
T stage, n = 22
Tx	6 (27.3)
T1	10 (45.5)
T2	5 (22.7)
T3	1 (4.5)
T4	0 (0)
N stage, n = 22
N1	3 (13.6)
N2	14 (63.7)
N3	5 (22.7)
Site of origin, n = 22
Tonsil	12 (54.5)
Base of tongue	4 (18.2)
Occult primary	6 (27.3)
HPV status, n = 21
Positive	17 (80.9)
Negative	4 (19.1)
p16 status, n = 21
Positive	20 (95.2)
Negative	1 (4.8)
ECS, n = 22
Positive	9 (40.9)
Negative	13 (59.1)

ECS = extracapsular spread; HPV = human papillomavirus; p16 = p16Ink4A.