Symptom Information: Sort according to HPO 

1
(HPO:0000252) Microcephaly 832 / 7739
2
(HPO:0000340) Sloping forehead 86 / 7739
3
(HPO:0000407) Sensorineural hearing impairment rare [HPO:skoehler] 524 / 7739
4
(HPO:0008527) Congenital sensorineural hearing impairment 165 / 7739
5
(HPO:0008625) Severe sensorineural hearing impairment 150 / 7739
6
(HPO:0000520) Proptosis rare [HPO:skoehler] 192 / 7739
7
(HPO:0001263) Global developmental delay 853 / 7739
8
(HPO:0002342) Intellectual disability, moderate 37 / 7739
9
(HPO:0002472) Small cerebral cortex 4 / 7739
10
(OMIM) Microcephaly, severe 4 / 7739
11
(OMIM) Conical-shaped teeth (in one patient) 1 / 7739
12
(OMIM) Mental retardation, mild to moderate 33 / 7739
13
(OMIM) Small but structurally normal cerebral cortex 1 / 7739
14
(OMIM) Simplified gyral pattern 11 / 7739
15
(OMIM) Small frontal lobes (in one patient) 1 / 7739
16
(OMIM) Partial absence of the corpus callosum (in one patient) 1 / 7739
17
(OMIM) Tonic clonic seizures, infrequent (in one patient) 1 / 7739
18
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
19
(HPO:0009879) Cortical gyral simplification rare [HPO:skoehler] 24 / 7739