raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:261600

Alagille syndrome due to 20p12 microdeletion

Synonyms: Alagille syndrome due to del(20)(p12) · Alagille syndrome due to monosomy 20p12 · Alagille-Watson syndrome due to monosomy 20p12 · Arteriohepatic dysplasia due to monosomy 20p12 · Syndromic bile duct paucity due to monosomy 20p12

Type
Etiological subtype
Group
Subtype of disorder
Inheritance
Not applicable
Status
active

This disease is described under Alagille syndrome

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAlagille syndrome due to 20p12 microdeletionAlagille syndrome due to del(20)(p12) · Alagille syndrome due to monosomy 20p12 · Alagille-Watson syndrome due to monosomy 20p12 · Arteriohepatic dysplasia due to monosomy 20p12 · Syndromic bile duct paucity due to monosomy 20p12
frSyndrome d'Alagille dû à une microdélétion 20p12Dysplasie artério-hépatique due à une monosomie 20p12 · Paucité des voies biliaires syndromique due à une monosomie 20p12 · Syndrome d'Alagille dû à une monosomie 20p12 · Syndrome d'Alagille-Watsons dû à une monosomie 20p12
deAlagille-Syndrom durch Mikrodeletion 20p12Alagille-Syndrom durch Del(20)(p12) · Alagille-Syndrom durch Monosomie 20p12 · Alagille-Watson-Syndrom durch Monosomie 20p12 · Dysplasie, arteriohepatische, durch Monosomie 20p12 · Gallenganghypoplasie, intrahepatische, durch Monosomie 20p12
esSíndrome de Alagille por microdeleción 20p12Displasia arteriohepática por monosomía 20p12 · Síndrome de Alagille por del(20)(p12) · Síndrome de Alagille por monosomía 20p12 · Síndrome de Alagille-Watson por monosomía 20p12 · Síndrome de escasez de conductos biliares por monosomía 20p12
itSindrome di Alagille da microdelezione 20p12Displasia arterio-epatica da monosomia 20p12 · Paucità sindromica delle vie biliari da monosomia 20p12 · Sindrome di Alagille da del(20)(p12) · Sindrome di Alagille da monosomia 20p12 · Sindrome di Alagille-Watson da monosomia 20p12
nlSyndroom van Alagille door 20p12-microdeletieAandoening van galwegen door monosomie 20p12 · Arteriohepatische dysplasie door monosomie 20p12 · Syndroom van Alagille door del(20)(p12) · Syndroom van Alagille door monosomie 20p12 · Syndroom van Alagille-Watson door monosomie 20p12
ptSíndrome Alagille por microdeleção 20p12Síndrome Alagille por monossomia 20p12
plZespół Alagille'a z powodu mikrodelecji 20p12Dysplazja tętniczo-wątrobowa z powodu monosomii 20p12 · Syndromic bile duct paucity due to monosomy 20p12 · Zespół Alagille'a i Watsona z powodu monosomii 20p12 · Zespół Alagille'a z powodu del(20)(p12) · Zespół Alagille'a z powodu monosomii 20p12
csAlagilleův syndrom způsobený 20p12 mikrodelecíAlagilleův syndrom způsobený del(20)(p12) · Alagilleův syndrom způsobený monozomií 20p12 · Alagilleův-Watsonův syndrom způsobený monozomií 20p12 · Arteriohepatická dysplázie způsobená monozomií 20p12 · Syndromická nedostatečnost žlučovodu způsobená monozomií 20p12 · Alagille-Watsonův syndrom způsobený monozomií 20p12
ukСиндром Алажіля, зумовлений мікроделеціїєю20p12Синдром Алажиля, зумовлений дефіцитом del(20)(p12) · Синдром Алажиля, зумовлений моносомією 20p12 · Синдром Алажиля-Вотсона, зумовлений моносомією 20p12 · Артеріопечінкова дисплазія внаслідок моносомії 20p12 · Синдром недостатності жовчних проток внаслідок моносомії 20p12
zh20p12微缺失所致Alagille综合征20p12单体所致综合症性胆管缺乏
tr20p12 mikrodelesyonuna bağlı Alagille sendromuDel'e bağlı Alagille sendromu (20) (p12) · Monozomi 20p12'ye bağlı Alagille sendromu · Monozomi 20p12'ye bağlı Alagille-Watson sendromu · Monozomi 20p12'ye bağlı arteriyohepatik displazi · Monozomi 20p12'ye bağlı sendromik safra kanalı yetersizliği
2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM118450NTBTvalidated
ICD-10Q44.7NTBTattributedvalidated
ICD-11LB20.0YNTBTattributedvalidated
MONDO0016861Evalidated
UMLSC5679679Evalidated

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 (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
JAG1Role in the phenotype ofAssessedHGNC:6188ENSG0000010138460192020p12.2jagged canonical Notch ligand 121934706[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

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

7

Sources for this card