Criteria for diagnosis

Frequency (N)

Percentage (%)

Loss of milestones

3

8.6

Plateau of milestones

5

14.3

Failure to attain milestones

6

17.1

Loss of intellectual ability

2

5.7

Acquired microcephaly

31

88.6

Paresis

1

2.9

Pathological reflexes

4

11.4

Gait disturbances

1

2.9