Symptom Information: Sort according to HPO 

1
(HPO:0000252) Microcephaly 832 / 7739
2
(HPO:0000609) Optic nerve hypoplasia 26 / 7739
3
(HPO:0001250) Seizures 1245 / 7739
4
(HPO:0001263) Global developmental delay 853 / 7739
5
(HPO:0001265) Hyporeflexia 208 / 7739
6
(HPO:0001319) Neonatal hypotonia 101 / 7739
7
(HPO:0002126) Polymicrogyria 64 / 7739
8
(HPO:0002187) Intellectual disability, profound 44 / 7739
9
(HPO:0002365) Hypoplasia of the brainstem 41 / 7739
10
(OMIM) Developmental delay, severe 13 / 7739
11
(OMIM) Thickened cortex 2 / 7739
12
(OMIM) Absence of the corpus callosum 5 / 7739
13
(OMIM) Hypoplastic brainstem with loss of demarcation at the pontomedullary junction 1 / 7739
14
(OMIM) Colpocephaly 3 / 7739
15
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
16
(HPO:0003577) Congenital onset 133 / 7739
17
(HPO:0030048) Colpocephaly 4 / 7739