raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:36383

COL4A1/2-related familial vascular leukoencephalopathy

Synonyms: COL4A-related brain small vessel disease with hemorrhage · COL4A-related retinal arteriolar tortuosity-infantile hemiparesis-autosomal dominant leukoencephalopathy syndrome · COL4A1/COL4A2-related familial vascular leukoencephalopathy

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Status
active

A rare genetic neurological disorder characterized by the presence of fragile small-vessel intracerebral vasculature in various members of a single family, manifesting, clinically, with single or recurrent hemorrhagic and/or ischemic stroke and, frequently, ocular and renal involvement. Neuroimaging reveals diffuse, periventricular leukoencephalopathy associated with dilated perivascular spaces, lacunar infarction and microhemorrhages.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enCOL4A1/2-related familial vascular leukoencephalopathyCOL4A-related brain small vessel disease with hemorrhage · COL4A-related retinal arteriolar tortuosity-infantile hemiparesis-autosomal dominant leukoencephalopathy syndrome · COL4A1/COL4A2-related familial vascular leukoencephalopathy
frLeucoencéphalopathie vasculaire familiale associée à COL4A1/2Anomalie des petits vaisseaux du cerveau avec hémorragie associée à COL4A · Leucoencéphalopathie vasculaire familiale associée à COL4A1/COL4A2 · Syndrome autosomique dominant de tortuosité des artérioles rétiniennes-hémiparésie infantile-leucoencéphalopathie associé à COL4A
deLeukenzephalopathie, familiäre vaskuläre, COL4A1/2-assoziierteCOL4A-assoziierte zerebrale Mikroangiopathie mit Hämorrhagie · COL4A-assoziiertes Syndrom der gewundenen Netzhautarteriolen mit infantiler Hemiparese und Leukoenzephalopathie
esLeucoencefalopatía vascular familiar asociada a COL4A1/2Enfermedad cerebral de pequeños vasos con hemorragia asociada a COL4A · Leucoencefalopatía vascular familiar asociada a COL4A1/COL4A2 · Síndrome de tortuosidad de las arterias retinianas-hemiparálisis infantil-leucoencefalopatía autosómica dominante asociado a COL4A
itLeucoencefalopatia vascolare familiare correlata a COL4A1Tortuosità delle arteriole retiniche - emiparesi infantile - leucoencefalopatia autosomica dominante
nlCOL4A1/2-gerelateerde familiale vasculaire leuko-encefalopathieCOL4A-gerelateerde kleine bloedvatenziekte van hersenen met hemorragie · COL4A-gerelateerde retinale arteriolaire tortuositeit - infantiele hemiparese - autosomaal dominante leuko-encefalopathie-syndroom · COL4A1/COL4A2-gerelateerde familiale vasculaire leuko-encefalopathie
ptLeucoencefalopatia vascular familiar COL4A1/2-relacionadaDoença de pequenos vasos cerebrais COL4A-relacionada com hemorragia · Leucoencefalopatia vascular familiar COL4A1/COL4A2-relacionada · Síndrome de tortuosidade arteriolar retiniana-hemiparesia infantil-leucoencefalopatia autossómica dominante COL4A-relacionada
plRodzinna leukoencefalopatia naczyniowa zależna od COL4A1Choroba małych naczyń mózgu z krwawieniem zależna od COL4A1 · Zespół krętych tętnic siatkówki, noworodkowego porażenia połowiczego i autosomalnnej dominującej leukoencefalopati zależny od COL4A1
csFamiliární vaskulární leukoencefalopatieOnemocnění malých mozkových cév s krvácením · Syndrom zahrnující retinální arteriolární tortuositu, infantilní hemiparézu a autozomálně dominantní leukoencefalopatii
ukСімейна судинна лейкоенцефалопатія, повязана з COL4A1/2COL4A1-залежне захворювання дрібних судин головного мозку з крововиливами · COL4A1-повязаний синдром артеріолярної звивистості сітківки - дитячий геміпарез - аутосомно-домінантна лейкоенцефалопатія
zhCOL4-A1相关家族性血管性白质脑病COL4A1相关性脑小血管疾病伴出血
trCOL4A1- -ilişkili ailesel vasküler lökoensefalopatiCOL4A1-ilişkili retinal arter tortuozite-infantil hemiparezi-otozomal dominant lökoensefalopati sendromu · COL4A1-ilişkili kanama ile seyreden beyin küçük damar hastalığı

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM175780NTBTvalidated
ICD-10I67.8NTBTattributedvalidated
MONDO0008289Evalidated
MONDO8289Evalidated
UMLSC4755307Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
COL4A1Disease-causing germline mutation(s) inAssessedHGNC:2202ENSG0000018749812013013q34collagen type IV alpha 1 chain23065703[PMID]
COL4A2Disease-causing germline mutation(s) inAssessedHGNC:2203ENSG0000013487112009013q34collagen type IV alpha 2 chain24390199[PMID]_36324412[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card