Symptom Information: Sort according to HPO 

1
(HPO:0000618) Blindness 124 / 7739
2
(HPO:0000648) Optic atrophy 238 / 7739
3
(HPO:0000726) Dementia 131 / 7739
4
(HPO:0002514) Cerebral calcification 89 / 7739
5
(HPO:0003700) Generalized amyotrophy 39 / 7739
6
(HPO:0008610) Infantile sensorineural hearing impairment 1 / 7739
7
(OMIM) Extensive CNS calcification in all structures, including meninges, vessels, and neurons at autopsy 1 / 7739
8
(OMIM) Moderate diffuse skeletal muscle wasting 1 / 7739
9
(HPO:0001417) X-linked inheritance 173 / 7739