Symptom Information: Sort according to HPO 

1
(HPO:0000252) Microcephaly Very frequent [Orphanet] 832 / 7739
2
(HPO:0001252) Muscular hypotonia Very frequent [Orphanet] 990 / 7739
3
(HPO:0001324) Muscle weakness 859 / 7739
4
(HPO:0000268) Dolichocephaly Very frequent [Orphanet] 144 / 7739
5
(HPO:0000358) Posteriorly rotated ears 163 / 7739
6
(HPO:0000369) Low-set ears 372 / 7739
7
(HPO:0001744) Splenomegaly Very frequent [Orphanet] 337 / 7739
8
(HPO:0000592) Blue sclerae Frequent [Orphanet] 85 / 7739
9
(HPO:0001250) Seizures Very frequent [Orphanet] 1245 / 7739
10
(HPO:0004322) Short stature Very frequent [Orphanet] 1232 / 7739
11
(HPO:0002066) Gait ataxia Frequent [Orphanet] 327 / 7739
12
(HPO:0000494) Downslanted palpebral fissures Very frequent [Orphanet] 328 / 7739
13
(HPO:0000239) Large fontanelles Very frequent [Orphanet] 135 / 7739
14
(HPO:0000325) Triangular face Very frequent [Orphanet] 91 / 7739
15
(HPO:0001263) Global developmental delay 853 / 7739
16
(HPO:0002750) Delayed skeletal maturation Very frequent [Orphanet] 250 / 7739
17
(HPO:0002120) Cerebral cortical atrophy Very frequent [Orphanet] 187 / 7739
18
(HPO:0000518) Cataract Frequent [Orphanet] 454 / 7739
19
(HPO:0000639) Nystagmus 555 / 7739
20
(HPO:0000969) Edema 117 / 7739
21
(HPO:0000988) Skin rash 98 / 7739
22
(HPO:0001272) Cerebellar atrophy 197 / 7739
23
(HPO:0001508) Failure to thrive 454 / 7739
24
(HPO:0001873) Thrombocytopenia 224 / 7739
25
(HPO:0001974) Leukocytosis 33 / 7739
26
(HPO:0002013) Vomiting 191 / 7739
27
(HPO:0002014) Diarrhea 225 / 7739
28
(HPO:0002059) Cerebral atrophy 171 / 7739
29
(HPO:0002073) Progressive cerebellar ataxia 27 / 7739
30
(HPO:0002335) Agenesis of cerebellar vermis 25 / 7739
31
(HPO:0002716) Lymphadenopathy 129 / 7739
32
(HPO:0002751) Kyphoscoliosis rare [HPO:skoehler] 131 / 7739
33
(HPO:0002829) Arthralgia 79 / 7739
34
(HPO:0002910) Elevated hepatic transaminases 158 / 7739
35
(HPO:0003236) Elevated serum creatine phosphokinase 214 / 7739
36
(HPO:0004819) Normocytic hypoplastic anemia 1 / 7739
37
(HPO:0006268) Fluctuating splenomegaly 1 / 7739
38
(HPO:0006564) Fluctuating hepatomegaly 1 / 7739
39
(HPO:0012282) Morbilliform rash 1 / 7739
40
(OMIM) Wide, irregular fontanels 1 / 7739
41
(OMIM) Central cataract 2 / 7739
42
(OMIM) Nuclear cataract (in some patients) Retinal dystrophy (in some patients) 1 / 7739
43
(OMIM) Undetectable rod and cone responses on electroretinography 1 / 7739
44
(OMIM) Attenuation of retinal vessels 5 / 7739
45
(OMIM) Moderate atrophy of optic disc 1 / 7739
46
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
47
(HPO:0010547) Muscle flaccidity 466 / 7739
48
(OMIM) Elevated IgD 1 / 7739
49
(OMIM) Serum cholesterol low or normal 1 / 7739
50
(OMIM) Elevated leukotriene E(4) 1 / 7739
51
(OMIM) Decreased ubiquinone-10 1 / 7739
52
(OMIM) Elevated urinary mevalonic acid 1 / 7739
53
(HPO:0012758) Neurodevelopmental delay Very frequent [Orphanet] 949 / 7739
54
(HPO:0000357) Abnormal location of ears Frequent [Orphanet] 328 / 7739
55
(HPO:0000007) Autosomal recessive inheritance 2538 / 7739
56
(HPO:0012072) Aciduria 1 / 7739