Legend
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Diagnosis/Initial: initial diagnosis, before molecular testing
Diagnosis/Definite: phenotype individual after molecular testing (OMIM abbreviation)
Phenotype details: additional information on the phenotype of the individual, preferably use HPO terms only (http://www.human-phenotype-ontology.org/)
Inheritance: Indicates the inheritance of the phenotype in the family; unknown, familial (autosomal/X-linked, dominant/ recessive), paternal (Y-linked), maternal (mitochondrial), isolated (sporadic) or complex
All options:
- Unknown
- Familial
- Familial, autosomal dominant
- Familial, autosomal recessive
- Familial, X-linked
- Familial, X-linked dominant
- Familial, X-linked dominant, male sparing
- Familial, X-linked recessive
- Paternal, Y-linked
- Maternal, mitochondrial
- Isolated (sporadic)
- Di-genic
- Complex
- - = Not applicable
Age/Examination: age at which the individual was examined.
- 35y = 35 years
- 04y08m = 4 years and 8 months
- 00y00m01d12h = 1 day and 12 hours
- 18y? = around 18 years
- 30y-40y = between 30 and 40 years
- >54y = older than 54
- ? = unknown
Age/Diagnosis: age diagnosis was confirmed
- 35y = 35 years
- 04y08m = 4 years and 8 months
- 00y00m01d12h = 1 day and 12 hours
- 18y? = around 18 years
- 30y-40y = between 30 and 40 years
- >54y = older than 54
- ? = unknown
Age/Onset: Age first symptoms disease appeared in individual:
- 35y = 35 years
- 04y08m = 4 years and 8 months
- 00y00m01d12h = 1 day and 12 hours
- 18y? = around 18 years
- 30y-40y = between 30 and 40 years
- >54y = older than 54
- ? = unknown
Phenotype/Onset: individual's phenotype at Age/Onset described using HPO

 Phenotype ID
|

 Diagnosis/Initial
|

 Diagnosis/Definite
|

 Phenotype details
|

 Inheritance
|

 Age/Examination
|

 Age/Diagnosis
|

 Age/Onset
|

 Phenotype/Onset
|

 Owner
|

 Individual ID
|
| 0000232100 |
leukoencephalopathy |
LCC |
epileptic seizures; severe developmental delay |
Familial, autosomal recessive |
11y |
- |
56d |
epileptic seizures |
Johan den Dunnen |
00306254 |
| 0000232101 |
leukoencephalopathy |
LCC |
16y-deceased; significant developmental delay and seizures; progressive neurological decline |
Familial, autosomal recessive |
16y |
- |
1y |
significant developmental delay and seizures |
Johan den Dunnen |
00306255 |
| 0000232102 |
leukoencephalopathy |
LCC |
abnormal head posture; unilateral pyramidal signs |
Familial, autosomal recessive |
11y |
- |
4y |
abnormal head posture |
Johan den Dunnen |
00306256 |
| 0000232103 |
leukoencephalopathy |
LCC |
32y-deceased; focal epileptic seizures; increasing spasticity; seizures; emotional lability |
Familial, autosomal recessive |
32y |
- |
12y |
focal epileptic seizures |
Johan den Dunnen |
00306257 |
| 0000232104 |
leukoencephalopathy |
LCC |
failure to achieve motor milestones; progressive spasticity and dystonia with complete loss of speech |
Familial, autosomal recessive |
22y |
- |
2y |
failure to achieve motor milestones |
Johan den Dunnen |
00306258 |
| 0000232105 |
leukoencephalopathy |
LCC |
unilateral tremor; 4 limb dystonia and severe cognitive impairment |
Familial, autosomal recessive |
18y |
- |
3y |
unilateral tremor |
Johan den Dunnen |
00306259 |
| 0000232106 |
leukoencephalopathy |
LCC |
prolonged febrile seizures; progressive gait disturbance, ataxia, dysarthria, cognitive impairment |
Familial, autosomal recessive |
19y |
- |
2y |
prolonged febrile seizures |
Johan den Dunnen |
00306260 |
| 0000232107 |
leukoencephalopathy |
LCC |
15y-deceased; identified as a neonate to have intracranial calcification. Presented age 5 months with focal epileptic seizures; progressive dystonia, ataxia, spasticity, severe mental retardation |
Familial, autosomal recessive |
15y |
- |
5m |
identified as a neonate to have intracranial calcification. Presented age 5 months with focal epileptic seizures |
Johan den Dunnen |
00306261 |
| 0000232108 |
leukoencephalopathy |
LCC |
progressive problems with schooling; progressive motor disorder with psychiatric features |
Familial, autosomal recessive |
25y |
- |
>6y |
progressive problems with schooling |
Johan den Dunnen |
00306262 |
| 0000232109 |
leukoencephalopathy |
LCC |
focal epileptic seizures; severe developmental delay |
Familial, autosomal recessive |
20y |
- |
18m |
focal epileptic seizures |
Johan den Dunnen |
00306263 |
| 0000232110 |
leukoencephalopathy |
LCC |
abnormal gait; can walk with support; demonstrates extrapyramidal, spastic and ataxic signs |
Familial, autosomal recessive |
34y |
- |
9y |
abnormal gait |
Johan den Dunnen |
00306264 |
| 0000232111 |
leukoencephalopathy |
LCC |
focal epileptic seizures; progressive neurological decline |
Familial, autosomal recessive |
10y |
- |
49d |
focal epileptic seizures |
Johan den Dunnen |
00306265 |
| 0000232112 |
leukoencephalopathy |
LCC |
developmental delay; moderate developmental delay |
Familial, autosomal recessive |
10y |
- |
<6m |
developmental delay |
Johan den Dunnen |
00306266 |
| 0000232113 |
leukoencephalopathy |
LCC |
developmental delay; mild developmental delay |
Familial, autosomal recessive |
8y |
- |
<18m |
developmental delay |
Johan den Dunnen |
00306267 |
| 0000232114 |
leukoencephalopathy |
LCC |
developmental delay; mild developmental delay |
Familial, autosomal recessive |
4y |
- |
<6m |
developmental delay |
Johan den Dunnen |
00306268 |
| 0000232115 |
leukoencephalopathy |
LCC |
headaches and memory loss; progressive spasticity requiring wheelchair use |
Familial, autosomal recessive |
36y |
- |
25y |
headaches and memory loss |
Johan den Dunnen |
00306269 |
| 0000232116 |
leukoencephalopathy |
LCC |
developmental delay; severe developmental delay with dystonic spastic disorder |
Familial, autosomal recessive |
20y |
- |
<6m |
developmental delay |
Johan den Dunnen |
00306270 |
| 0000232117 |
leukoencephalopathy |
LCC |
developmental delay; some intellectual delay with dystonia and spasticity works semi- independently although can walk with aids and |
Familial, autosomal recessive |
19y |
- |
<6m |
developmental delay |
Johan den Dunnen |
00306271 |
| 0000232118 |
leukoencephalopathy |
LCC |
58y-deceased; progressive hemiparesis; progressive neurological decline in adulthood |
Familial, autosomal recessive |
58y |
- |
54y |
progressive hemiparesis |
Johan den Dunnen |
00306272 |
| 0000232119 |
leukoencephalopathy |
LCC |
seizures; asymmetrical dystonia with some learning difficulties |
Familial, autosomal recessive |
6y |
- |
<6m |
seizures |
Johan den Dunnen |
00306273 |
| 0000232120 |
leukoencephalopathy |
LCC |
13y-deceased; focal epileptic seizures; progressive neurological decline |
Familial, autosomal recessive |
13y |
- |
10m |
focal epileptic seizures |
Johan den Dunnen |
00306274 |
| 0000232121 |
leukoencephalopathy |
LCC |
scan undertaken in absence of symptoms; minor learning problems and some subtle focal motor signs on examination |
Familial, autosomal recessive |
11y |
- |
<5y |
scan undertaken in absence of symptoms |
Johan den Dunnen |
00306275 |
| 0000232122 |
leukoencephalopathy |
LCC |
epileptic seizures; moderate developmental delay with focal neurological signs |
Familial, autosomal recessive |
7y |
- |
7m |
epileptic seizures |
Johan den Dunnen |
00306276 |
| 0000232123 |
leukoencephalopathy |
LCC |
epileptic seizures; some intellectual delay and dyskinesia |
Familial, autosomal recessive |
10y |
- |
15m |
epileptic seizures |
Johan den Dunnen |
00306277 |
| 0000232124 |
leukoencephalopathy |
LCC |
subtle delays in development; some behavioral issues, but otherwise intellectually and physically intact |
Familial, autosomal recessive |
13y |
- |
<12m |
subtle delays in development |
Johan den Dunnen |
00306278 |
| 0000232125 |
leukoencephalopathy |
LCC |
developmental delay; severe psychomotor delay |
Familial, autosomal recessive |
9y |
- |
<6m |
developmental delay |
Johan den Dunnen |
00306279 |
| 0000232126 |
leukoencephalopathy |
LCC |
28y-deceased; dystonic quadriplegia; progressive neurological decline in adulthood |
Familial, autosomal recessive |
28y |
- |
3y |
dystonic quadriplegia |
Johan den Dunnen |
00306280 |
| 0000232127 |
leukoencephalopathy |
LCC |
developmental delay; unable to walk due to spasticity. dysarthria. uses sign language |
Familial, autosomal recessive |
8y |
- |
9m |
developmental delay |
Johan den Dunnen |
00306281 |
| 0000232128 |
leukoencephalopathy |
LCC |
developmental delay; severe developmental delay |
Familial, autosomal recessive |
4y |
- |
<4m |
developmental delay |
Johan den Dunnen |
00306282 |
| 0000232129 |
leukoencephalopathy |
LCC |
epileptic seizures; severe developmental delay |
Familial, autosomal recessive |
6y |
- |
2m |
epileptic seizures |
Johan den Dunnen |
00306283 |
| 0000232130 |
leukoencephalopathy |
LCC |
motor deterioration with previous diagnosis of mild cerebral palsy; progressive motor deterioration with dysarthria |
Familial, autosomal recessive |
16y |
- |
12y |
motor deterioration with previous diagnosis of mild cerebral palsy |
Johan den Dunnen |
00306284 |
| 0000232131 |
leukoencephalopathy |
LCC |
attention deficit on background of prematurity; cognitive slowing, tremor, ataxia and epilepsy |
Familial, autosomal recessive |
13y |
- |
7y |
attention deficit on background of prematurity |
Johan den Dunnen |
00306285 |
| 0000232132 |
leukoencephalopathy |
LCC |
minor developmental problems (scanned in view of her sister’s diagnosis); stable with minimal features |
Familial, autosomal recessive |
7y |
- |
6y |
minor developmental problems (scanned in view of her sister’s diagnosis) |
Johan den Dunnen |
00306286 |
| 0000232133 |
leukoencephalopathy |
LCC |
epileptic seizures; some intellectual delay with hemiparesis |
Familial, autosomal recessive |
35y |
- |
10y-20y |
epileptic seizures |
Johan den Dunnen |
00306287 |
| 0000232134 |
leukoencephalopathy |
LCC |
epileptic seizures; no major deficits |
Familial, autosomal recessive |
32y |
- |
10y-20y |
epileptic seizures |
Johan den Dunnen |
00306288 |
| 0000232135 |
leukoencephalopathy |
LCC |
developmental delay and monoparesis; mild hemiplegia |
Familial, autosomal recessive |
5y |
- |
18m |
developmental delay and monoparesis |
Johan den Dunnen |
00306289 |
| 0000232136 |
leukoencephalopathy |
LCC |
developmental delay; moderate developmental delay |
Familial, autosomal recessive |
2y |
- |
<6m |
developmental delay |
Johan den Dunnen |
00306290 |
| 0000232137 |
leukoencephalopathy |
LCC |
ataxia; minor degree of major functional deficit ataxia and dysarthria but no |
Familial, autosomal recessive |
54y |
- |
50y |
ataxia |
Johan den Dunnen |
00306291 |
| 0000232138 |
leukoencephalopathy |
LCC |
gait problems; mainly unilateral dystonia / spasticity |
Familial, autosomal recessive |
17y |
- |
3y |
gait problems |
Johan den Dunnen |
00306292 |
| 0000232139 |
leukoencephalopathy |
LCC |
epileptic seizures; progressive motor disorder with psychiatric features |
Familial, autosomal recessive |
9y |
- |
6m |
epileptic seizures |
Johan den Dunnen |
00306293 |
| 0000232140 |
leukoencephalopathy |
LCC |
gait problems; probably slowly progressive motor deterioration with learning difficulties |
Familial, autosomal recessive |
10y |
- |
10y |
gait problems |
Johan den Dunnen |
00306294 |
| 0000282254 |
leukoencephalopathy |
- |
leukoencephalopathy; 7y-psychotic disorder, autistic traits, learning disability; 8y-brief generalized seizures consisting of loss of consciousness and generalized stiffening body and extremities, EEG normal, received treatment with levetiracetam (good response; 19y-obesity, genu valgus, talus valgus, fundoscopy papillary pallor |
Familial, autosomal recessive |
19y |
- |
- |
- |
Johan den Dunnen |
00388714 |
| 0000296577 |
MR, Ataxia, Spastic Paraparesis |
Leukoencephalopathy |
Mental retardation
progressive ataxia and spastic paraparesis |
Familial, autosomal recessive |
20y |
17y |
11y |
- |
Sherifa Ahmed Hamed |
00403922 |
| 0000350133 |
neurodegeneration |
POLG-related |
HP:0002352, HP:0002180 |
Isolated (sporadic) |
- |
- |
- |
- |
Marketa Wayhelova |
00464071 |