raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:69739

Athabaskan brainstem dysgenesis syndrome

Synonyms: ABSD · Athabascan brainstem dysgenesis syndrome · Navajo brainstem syndrome

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Infancy, Neonatal
Status
active

A rare, genetic, neurological disorder characterized by horizontal gaze palsy, sensorineural deafness, central hypoventilation, developmental delay, and intellectual disability, described in persons of Athabascan American Indian heritage. Swallowing dysfunction, vocal cord paralysis, facial paresis, seizures, internal carotid artery, and cardiac outflow tract anomalies may be additionally observed. No dysmorphic facial features are associated.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAthabaskan brainstem dysgenesis syndromeABSD · Athabascan brainstem dysgenesis syndrome · Navajo brainstem syndrome
frDysgénésie du tronc cérébral type Athabascan
deAthabasken-Hirnstammdysgenesie-SyndromABSD · Navajo-Hirnstamm-Syndrom
esSíndrome disgenésico del tronco encefálico de AthabaskanABSD · Síndrome troncoencefálico navajo
itSindrome da disgenesia del tronco encefalico tipo AthabaskanABSD · Sindrome da disgenesia del tronco cerebrale, tipo Athabascan · Sindrome del tronco cerebrale dei Navajo
nlAthabaskan-hersenstamdysgenesiesyndroomABSD · Athabascan-hersenstamdysgenesiesyndroom · Navajo-hersenstamsyndroom
ptDisgenesia do tronco cerebral de AthabaskanABSD · Síndrome tronco cerebral de Navajo
plAthabaskański zespół dysgenezji pnia mózguABSD · Zespół pnia mózgu Navajo
csAthabaský syndrom dysgeneze mozkového kmeneABSD · Athabaskanský syndrom dysgeneze mozkového kmene · Navažský syndrom mozkového kmene
ukСиндром дисгенезії стовбура головного мозку АтабасканаABSD · Синдром дисгенезії стовбура головного мозку Атабаскана · Синдром стовбура мозку Навахо
zhAthabaskan脑干发育不良综合征Athabaskan脑干发育不良综合征
trAthabaskan beyin sapı disgenezi sendromuABSD · Navajo beyin sapı sendromu · Athabascan beyin sapı disgenezi sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM601536Evalidated
ICD-10G96.8NTBTattributedvalidated
ICD-11LD2H.YNTBTindexvalidated
MONDO0011099Evalidated
MeSHC535397Evalidated
UMLSC1832215Evalidated
GARD8333Evalidated

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 (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
HOXA1Disease-causing germline mutation(s) inAssessedHGNC:5099ENSG000001059911429557p15.2homeobox A118412118[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families13 casesWorldwideCase(s)Validated12833395[PMID]_18412118[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_12833395[PMID]_18412118[PMID]

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