Symptom Information: Sort according to HPO 

1
(HPO:0000233) Thin vermilion border Very frequent [Orphanet] 124 / 7739
2
(HPO:0001347) Hyperreflexia Frequent [Orphanet] 363 / 7739
3
(HPO:0000252) Microcephaly Very frequent [Orphanet] 832 / 7739
4
(HPO:0003103) Abnormal cortical bone morphology Frequent [Orphanet] 38 / 7739
5
(HPO:0007370) Aplasia/Hypoplasia of the corpus callosum Frequent [Orphanet] 180 / 7739
6
(HPO:0004322) Short stature Very frequent [Orphanet] 1232 / 7739
7
(HPO:0000494) Downslanted palpebral fissures Very frequent [Orphanet] 328 / 7739
8
(HPO:0002119) Ventriculomegaly Frequent [Orphanet] 253 / 7739
9
(HPO:0000340) Sloping forehead Very frequent [Orphanet] 86 / 7739
10
(HPO:0000069) Abnormality of the ureter Frequent [Orphanet] 47 / 7739
11
(HPO:0001250) Seizures 1245 / 7739
12
(HPO:0008678) Renal hypoplasia/aplasia Frequent [Orphanet] 127 / 7739
13
(OMIM) Mental retardation, mild to severe 14 / 7739
14
(OMIM) Decreased brain weight 1 / 7739
15
(OMIM) Disproportionately small cerebral cortex 1 / 7739
16
(HPO:0001327) Photomyoclonic seizures 125 / 7739
17
(OMIM) Premature chromosome condensation 1 / 7739
18
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739