Symptom Information: Sort according to HPO 

1
 (HPO:0000238) Hydrocephalus 278 / 7739
2
 (HPO:0000365) Hearing impairment 539 / 7739
3
 (HPO:0000618) Blindness 124 / 7739
4
 (HPO:0000639) Nystagmus 555 / 7739
5
 (HPO:0000648) Optic atrophy 238 / 7739
6
 (HPO:0000762) Decreased nerve conduction velocity 36 / 7739
7
 (HPO:0001250) Seizures 1245 / 7739
8
 (HPO:0001508) Failure to thrive 454 / 7739
9
 (HPO:0002013) Vomiting 191 / 7739
10
 (HPO:0002180) Neurodegeneration 31 / 7739
11
 (HPO:0002191) Progressive spasticity 12 / 7739
12
 (HPO:0002333) Motor deterioration 7 / 7739
13
 (HPO:0002353) EEG abnormality 188 / 7739
14
 (HPO:0001268) Mental deterioration 88 / 7739
15
 (HPO:0002376) Developmental regression 74 / 7739
16
 (HPO:0002922) Increased CSF protein 27 / 7739
17
 (HPO:0007141) Sensorimotor neuropathy 27 / 7739
18
 (HPO:0007928) Abnormal flash visual evoked potentials 2 / 7739
19
 (HPO:0011096) Peripheral demyelination 28 / 7739
20
 (HPO:0006958) Abnormal auditory evoked potentials 12 / 7739
21
 (OMIM) Hyperirritability 2 / 7739
22
 (OMIM) Hypersensitive to stimuli 1 / 7739
23
 (OMIM) Hyperactive deep tendon reflexes in early stage 1 / 7739
24
 (OMIM) Decerebrate posturing 1 / 7739
25
 (OMIM) Hypertonia in early stage 1 / 7739
26
 (OMIM) Hypotonia in later stages 1 / 7739
27
 (OMIM) Diffuse cerebral atrophy on CT and MRI 1 / 7739
28
 (OMIM) 'Globoid multinucleated cells' in brain tissue 1 / 7739
29
 (OMIM) Loss of myelin and oligodendroglia 1 / 7739
30
 (OMIM) Diffuse demyelinating neuropathy 1 / 7739
31
 (OMIM) Galactocerebroside beta-galactosidase deficiency in serum, leukocytes, and fibroblasts 1 / 7739