group A

group B

P value

Count

%

Count

%

Preop Hannover Classification of Tumor Extension

T2

1

6.7%

0

0.0%

1

T3a

1

6.7%

1

6.7%

T3b

2

13.3%

2

13.3%

T4a

9

60.0%

10

66.7%

T4b

2

13.3%

2

13.3%

Size of the lesion (mm) in MRI

<30

1

6.7%

0

0.0%

1

>30

8

53.3%

9

60.0%

>40

4

26.7%

5

33.3%

>50

2

13.3%

1

6.7%