Symptom Information: Sort according to HPO 

1
(HPO:0000238) Hydrocephalus Occasional [Orphanet] 278 / 7739
2
(HPO:0002084) Encephalocele Occasional [Orphanet] 70 / 7739
3
(HPO:0002167) Neurological speech impairment Occasional [Orphanet] 308 / 7739
4
(HPO:0002308) Arnold-Chiari malformation Occasional [Orphanet] 42 / 7739
5
(HPO:0100835) Benign neoplasm of the central nervous system Occasional [Orphanet] 12 / 7739
6
(HPO:0000752) Hyperactivity Frequent [Orphanet] 140 / 7739
7
(HPO:0001428) Somatic mutation Very frequent [Orphanet] 100 / 7739
8
(HPO:0000708) Behavioral abnormality Occasional [Orphanet] 212 / 7739