Symptom Information: Sort according to HPO 

1
(HPO:0000238) Hydrocephalus 278 / 7739
2
(HPO:0001250) Seizures rare [HPO:skoehler] 1245 / 7739
3
(HPO:0001256) Intellectual disability, mild rare [HPO:skoehler] 141 / 7739
4
(HPO:0001321) Cerebellar hypoplasia 114 / 7739
5
(HPO:0001338) Partial agenesis of the corpus callosum 22 / 7739
6
(HPO:0002079) Hypoplasia of the corpus callosum 161 / 7739
7
(HPO:0002119) Ventriculomegaly 253 / 7739
8
(HPO:0002126) Polymicrogyria 64 / 7739
9
(HPO:0002281) Gray matter heterotopias 4 / 7739
10
(HPO:0002700) Large foramen magnum 6 / 7739
11
(HPO:0007033) Cerebellar dysplasia 13 / 7739
12
(HPO:0008625) Severe sensorineural hearing impairment 150 / 7739
13
(HPO:0100702) Arachnoid cyst 15 / 7739
14
(HPO:0001334) Communicating hydrocephalus 32 / 7739
15
(OMIM) Hearing loss, sensorineural, severe to profound 3 / 7739
16
(OMIM) Normal psychomotor development in most 1 / 7739
17
(HPO:0001327) Photomyoclonic seizures 125 / 7739
18
(OMIM) Brain MRI shows hypoplasia of the corpus callosum 1 / 7739
19
(HPO:0006989) Dysplastic corpus callosum 7 / 7739
20
(OMIM) Cerebellar hypoplasia due to enlarged foramen magnum 1 / 7739
21
(OMIM) Focal cerebellar dysplasia 1 / 7739
22
(OMIM) Obstruction of the foramen of Monro (variable) 1 / 7739
23
(OMIM) Subcortical nodular grey matter heterotopia 1 / 7739
24
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739