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Table 1 Clinical and neuroimaging features of the four MCPH2 patients

From: The utility of exome sequencing for genetic diagnosis in a familial microcephaly epilepsy syndrome

Patient

II-1

II-2

II-3

II-4

Gender

F

M

M

F

Age at assessment (yrs)

59

56

55

53

Clinical features

Height (cm)

158

154

166

154

Height percentile

10-25th

<5th

5th

5-10th

Occipito-frontal circumference (cm)

48.5

52

51

48

Occipito-frontal circumference (SD)

-4 to -5 SD

-2 to -3 SD

-3 SD

-4 to -5 SD

Sloping forehead

+

+

+

+

Intellectual disability

Moderate-severe

Severe

Severe

Moderate-severe

Behaviour

Pleasant

Self injurious behaviour

Self injurious behaviour

Pleasant

Tone

Normal

Hypertonia

Hypertonia

Normal

Sensory exam

Normal

Normal

Normal

Normal

Reflexes

Normal

Hyperreflexia/ankle clonus

Hyperreflexia/ankle clonus

Normal

Bladder/bowel incontinence

+/-

+/+

+/+

+/-

Neuroimaging features

Microcephaly

+

Nd

Nd

+

Polymicrogyria

-

Nd

Nd

-

Cerebellar hypoplasia

-

Nd

Nd

-

Cortical thickenng

-

Nd

Nd

-

Corpus callosum hypoplasia

-

Nd

Nd

-

  1. Abbreviations: F female, M male, nd not determined.