raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:675

Annular pancreas

Type
Morphological anomaly
Group
Disorder
Inheritance
Autosomal dominant, Not applicable
Age of onset
Infancy, Neonatal
Status
active

A distinct form of duodenal atresia in which the head of the pancreas forms a ring around the second portion of the duodenum.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAnnular pancreas
frPancréas annulaire
dePankreas anularis
esPáncreas anular
itPancreas ad anello
nlAnnulaire pancreasPancreas annulare · Ringvormige alvleesklier
ptPâncreas anular
plTrzustka obrączkowata
csAnulární pankreas
ukКільцева підшлункова залоза
zh环状胰腺
trDairesel pankreas

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM167750Evalidated
ICD-10Q45.1NTBTattributedvalidated
ICD-11LB21.0Especificvalidated
MONDO0008183Evalidated
MeSHC536376Evalidated
UMLSC0149955Evalidated
GARD705Evalidated
MedDRA10071757Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

16 records
TypeClassValueAreaQualificationValidationSource
Prevalence at birth1-9 / 100 0001.8 / 100 000EuropeValue and classValidated[EXPERT]_EUROCAT European surveillance of congenital anomalies 2010[OTHER]
Prevalence at birth1-5 / 10 00029.4 / 100 000AustriaValue and classValidatedEUROCAT European surveillance of congenital anomalies 2009[OTHER]
Prevalence at birth1-9 / 100 0002.9 / 100 000BelgiumValue and classValidatedEUROCAT European surveillance of congenital anomalies 2011[OTHER]
Prevalence at birth1-5 / 10 00021.3 / 100 000DenmarkValue and classValidatedEUROCAT European surveillance of congenital anomalies 2011[OTHER]
Prevalence at birth1-9 / 100 0007.9 / 100 000FranceValue and classValidatedEUROCAT European surveillance of congenital anomalies 2011[OTHER]
Prevalence at birth1-9 / 100 0005.9 / 100 000GermanyValue and classValidatedEUROCAT European surveillance of congenital anomalies 2011[OTHER]
Prevalence at birth1-9 / 100 0001 / 100 000HungaryValue and classValidatedEUROCAT European surveillance of congenital anomalies 2009[OTHER]
Prevalence at birth1-9 / 100 0003.6 / 100 000IrelandValue and classValidatedEUROCAT European surveillance of congenital anomalies 2011[OTHER]
Prevalence at birth1-9 / 100 0005.7 / 100 000ItalyValue and classValidatedEUROCAT European surveillance of congenital anomalies 2011[OTHER]
Prevalence at birth1-5 / 10 00024.9 / 100 000MaltaValue and classValidatedEUROCAT European surveillance of congenital anomalies 2010[OTHER]
Prevalence at birth1-5 / 10 00017.1 / 100 000NetherlandsValue and classValidatedEUROCAT European surveillance of congenital anomalies 2010[OTHER]
Prevalence at birth1-9 / 1 000 0000.7 / 100 000PolandValue and classValidatedEUROCAT European surveillance of congenital anomalies 2010[OTHER]
Prevalence at birth1-9 / 100 0003.1 / 100 000SpainValue and classValidatedEUROCAT European surveillance of congenital anomalies 2010[OTHER]
Prevalence at birth1-9 / 1 000 0000.8 / 100 000United KingdomValue and classValidatedEUROCAT European surveillance of congenital anomalies 2010[OTHER]
Prevalence at birth1-9 / 100 0003.2 / 100 000UkraineValue and classValidatedEUROCAT European surveillance of congenital anomalies 2010[OTHER]
Point prevalence1-9 / 100 0004.5 / 100 000WorldwideValue and classValidated38310080[PMID]_ORPHANET

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

3 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001734Annular pancreas
HP:0100867Duodenal stenosis
Frequent (79-30%)
HP:0005250High intestinal obstruction

Run the differential on the 2 obligate / very frequent terms

7

Sources for this card