Symptom Information: Sort according to HPO 

1
(HPO:0002334) Abnormality of the cerebellar vermis Occasional [Orphanet] 137 / 7739
2
(HPO:0001010) Hypopigmentation of the skin Very frequent [Orphanet] 46 / 7739
3
(HPO:0002205) Recurrent respiratory infections Occasional [Orphanet] 254 / 7739
4
(HPO:0001252) Muscular hypotonia Very frequent [Orphanet] 990 / 7739
5
(HPO:0001324) Muscle weakness 859 / 7739
6
(HPO:0002216) Premature graying of hair Very frequent [Orphanet] 43 / 7739
7
(HPO:0001337) Tremor Frequent [Orphanet] 200 / 7739
8
(HPO:0005599) Hypopigmentation of hair Very frequent [Orphanet] 38 / 7739
9
(HPO:0001257) Spasticity 251 / 7739
10
(HPO:0001276) Hypertonia Occasional [Orphanet] 317 / 7739
11
(HPO:0000545) Myopia Frequent [Orphanet] 286 / 7739
12
(HPO:0001250) Seizures Very frequent [Orphanet] 1245 / 7739
13
(HPO:0000486) Strabismus Occasional [Orphanet] 576 / 7739
14
(HPO:0001251) Ataxia 413 / 7739
15
(HPO:0002066) Gait ataxia Occasional [Orphanet] 327 / 7739
16
(HPO:0100022) Abnormality of movement Very frequent [Orphanet] 129 / 7739
17
(HPO:0000953) Hyperpigmentation of the skin Occasional [Orphanet] 75 / 7739
18
(HPO:0001249) Intellectual disability 1089 / 7739
19
(HPO:0001263) Global developmental delay 853 / 7739
20
(HPO:0002120) Cerebral cortical atrophy Occasional [Orphanet] 187 / 7739
21
(HPO:0000639) Nystagmus Occasional [Orphanet] 555 / 7739
22
(HPO:0000577) Exotropia 43 / 7739
23
(HPO:0001008) Accumulation of melanosomes in melanocytes 4 / 7739
24
(HPO:0002218) Silver-gray hair 6 / 7739
25
(HPO:0002220) Melanin pigment aggregation in hair shafts 4 / 7739
26
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
27
(HPO:0010547) Muscle flaccidity 466 / 7739
28
(HPO:0012795) Abnormality of the optic disc Occasional [Orphanet] 187 / 7739
29
(HPO:0008059) Aplasia/Hypoplasia of the macula Occasional [Orphanet] 21 / 7739
30
(HPO:0001522) Death in infancy Occasional [Orphanet] 275 / 7739
31
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739
32
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
33
(HPO:0003593) Infantile onset 249 / 7739
34
(HPO:0003819) Death in childhood 42 / 7739