Table 1 Phenotype and clinical severity of patients with MFN2 mutations.

From: Clinical and genetic features of a cohort of patients with MFN2-related neuropathy

Mutation

Patient #

Age at onset

Age at review

Sex

CMTESv2

CMTESv2-R

Ambulation

Motor symptoms

Sensory symptoms

R94Q

01–1

3 y

22 y

M

13

18

Ambulatory (bilateral support, AFOs)

+

+

R104W

02–1

1 y

5 y

M

26 (CMTPeds)

/

Ambulatory (AFOs)

+

03–1

14 y

55 y

M

18

22

Ambulatory (bilateral support)

+

+

03–2

2 y

23

M

16

20

Non-ambulatory

+

03–3

4 y

20

M

18

24

Non-ambulatory

+

+

T236M

04–1

5 y

8 y

M

12 (CMTPeds)

/

Ambulatory (plantars)

+

S249C

05–1

17 y

39 y

F

7

8

Ambulatory (autonomous)

+

R280H

06–1

69 y

77 y

F

9

12

Ambulatory (unilateral support)

+

07–1

48 y

76 y

F

14

19

Ambulatory (bilateral support)

+

+

08–1

58 y

71 y

M

3

3

Ambulatory (autonomous)

+

K357E

09–1

1 y

23 y

F

19

26

Non-ambulatory

+

+

A383V

10–1

7 y

48 y

F

12

13

Ambulatory (AFOs)

+

10–2

12 y

58 y

F

11

16

Ambulatory (walking aids)

+

+

  1. AFO ankle–foot orthosis, CMTES Charcot–Marie–Tooth examination scale, CMTES-R Rasch analysis-weighted CMTES, CMTPeds CMT Pediatric Scale.