Table 2 Magnetic resonance imaging (MRI) and computed tomography scan (CT) of the skull and brain, in six individuals with SNX10 related intermediate autosomal recessive osteopetrosis (IARO).

From: SNX10 gene mutation leading to osteopetrosis with dysfunctional osteoclasts

Patient number

1

1

1

4

5

7

8

8

9

Gender (male/female)

Male

Male

Male

Female

Female

Male

Male

Male

Female

Age at the time of imaging (year)

29

34

33

35

14

2

11

11

8

MRI/CT-scan

MRI

MRI

CT

CT

MRI

MRI

MRI

CT

MRI

Corpus callosum aplasia/hypoplasia

0

0

X

X

0

0

0

X

0

Sclerotic bone

1

1

1

1

1

0

1

1

1

Thickened bone

1

1

1

1

1

0

1

1

1

Ventriculomegaly

0

0

0

0

0

0

1

1

0

Remodelled inner table

1

1

1

0

1

0

0

1

0

Tonsillar herniation

1

1

X

0

1

0

1

X

1

Optic nerve sheath dilatation

0

0

0

0

1

0

1

1

0

Proptosis

1

1

1

1

0

0

1

X

1

Brain atrophy

0

0

0

0

0

0

0

0

0

Optic nerve atrophy

0

0

0

X

X

1

1

X

1

Optic canal stenosis

0

1

1

1

0

0

1

0

0

Ear fluid

1

1

X

X

0

1

0

X

0

Dural venous sinus stenosis

X

X

X

0

1

X

1

X

1

Foramen magnum stenosis

0

0

X

X

1

0

1

X

1

Posteriorly angulated dens with stenosis

X

X

X

X

1

0

1

X

1

Cervical spinal stenosis in included upper part

1

1

0

0

0

0

0

0

0

Subdural hematoma or intra-cerebral bleeding

0

0

0

0

0

0

0

0

0

Prominent collateral veins between sinus transversus and extra-cranial veins

0

0

0

0

0

0

1

0

0

Lemon shape of the scull (similar to what is seen in Chari II malformation), syrinx of the cervical cord, large occipital horns

0

0

0

0

0

0

1

0

0

Calcification in basal ganglia and subcortical frontal lobes

0

0

0

0

0

0

0

1

0

  1. 1 = present, 0 = not present, X = feature not possible to evaluate.