Table 4 Response to induction chemotherapy

Clinicoradiologic assessment after first cycle of induction chemotherapy

CR

1

(7)

1

(33)

2

(11)

PR

11

(73)

2

(67)

13

(72)

SD

2

(13)

2

(11)

PD

1

1

(6)

Clinicoradiologic assessment after third cycle of induction chemotherapy

CR

3

(25)

PR

9

(75)

Histopathologic result

1 cycle

3 cycles

all patients

pCR of primary tumor

1

(6)

8

(44)

9

(50)

pCR of neck metastasis*

2

(14)

4

(29)

6

(33)

pCR of primary and neck*

1

(7)

4

(29)

5

(27)

Histopathologic result

pCR of primary tumor

6

(50)

3

(50)

9

(50)

pCR of neck metastasis*

5

(42)

1

(17)

6

(33)

pCR of primary and neck*

4

(33)

1

(17)

5

(27)

yTNM 

HPV-

HPV+

all patients

N =15

N = 3

N =18

ypT0ypN0

3

(20)

3

(100)

6

(33)

ypT0ypN1

1

(7)

1

(6)

ypT0ypN2

2

(13)

2

(11)

ypT1ypN0

2

(13)

2

(11)

ypT1ypN1

2

(13)

2

(11)

ypT1ypN2

1

(7)

1

(6)

ypT2ypN2

1

(7)

1

(6)

ypT3ypN0

1

(7)

1

(6)

ypT4ypN0

1

(7)

1

(6)

ypT4ypN2

1

(7)

1

(6)

Histopathologic risk classification

Low risk

14

(78)

High risk

4

(22)