Table 2 The MRI findings in 37 children with MMA.

From: Brain MRI features of methylmalonic acidemia in children: the relationship between neuropsychological scores and MRI findings

Patient

The group of by clinical screening

Cerebral sulcus widened

Cerebellar atrophy

Brainstem thinning

Corpus callosum thinning

Cortical atrophy (sulcal widening)

Ventricular dilation (0–3)

Subcortical white matter change

Periventricular white matter change

Internal capsule change

Signal change consistent with focal infarct

Abnormal signal in basal ganglia

1

SS

+

Severe

Frontal

2

SS

Mild

3

SS

+

+

+

+

Severe

Mild

4

SS

+

+

+

5

SS

+

Mild

6

SS

Mild

7

SS

+

+

Mild

8

SS

+

Mild

9

NS

Mild

10

SS

+

+

+

+

Moderate

Frontal

Mild

+

11

SS

+

+

+

+

Frontal and parietal

Mild

12

NS

Mild

13

SS

+

Parietal

Mild

14

NS

Parietal

Mild

15

NS

Diffuse

Mild

+

16

NS

+

17

NS

+

+

+

+

Mild

18

NS

Mild

19

NS

+

+

Severe

Parietal

Moderate

+

+

20

NS

Mild

+

21

NS

Mild

22

NS

Mild

23

NS

+

Mild

+

24

SS

Mild

25

NS

Parietal

Mild

26

NS

+

+

+

Mild

27

SS

+

+

Parietal

28

SS

+

+

+

+

+

Mild

Frontal and parietal

Moderate

29

NS

+

+

30

SS

+

+

+

+

+

Severe

Diffuse

Severe

+

31

NS

+

+

+

Moderate

Frontal and parietal

Mild

32

SS

Mild

33

SS

Mild

34

NS

+

Frontal and parietal

Mild

35

NS

+

+

+

+

+

Severe

Diffuse

Moderate

+

36

NS

+

+

Mild

37

SS

+

+

Severe