Table 1 Clinical data of MPNST and BPNST

Average age

60.7 ± 11.2

51.1 ± 12.8

0.101

Gender

0.328

  Male

4

13

  Female

2

15

Location

0.128

  Paraspine

0

16

  Upper extremities

1

1

  Lower extremities

1

3

  Retroperinum

2

2

  Head and neck soft tissue

1

3

  Orbit

0

2

  Trunk

1

1

NF-1

2

2

0.135

Symptom

0.059

  Lump

4

5

  Pain or discomfort

1

8

  Physical examination

0

12

  Others

1

3

Former surgery in same site

0

1

0.176