raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:166087

Von Willebrand disease type 2B

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant
Status
active

A subtype of type 2 von Willebrand disease characterized by a bleeding disorder associated with increased affinity of the Willebrand factor (VWF) for platelets leading to rapid clearance of both the platelets (increasing the risk of thrombocytopenia) and VWF from the plasma. The disease manifests as mucocutaneous bleeding (menorrhagia, epistaxis, gastrointestinal hemorrhage, etc.).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enVon Willebrand disease type 2B
frMaladie de von Willebrand type 2B
deVon-Willebrand-Erkrankung Typ 2BVon-Willebrand-Syndrom Typ 2B · VWE Typ 2B
esEnfermedad de Von Willebrand tipo 2B
itMalattia di von Willebrand, tipo 2B
nlZiekte van von Willebrand type 2B
ptDoença de Von Willebrand, tipo 2B
plChoroba von Willebranda typu 2B
csVon Willebrandova nemoc, typ 2b
ukХвороба фон Віллебранда, тип 2B
zh血管性血友病2B型
trVon Willebrand hastalığı tipi 2B

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM613554NTBTvalidated
ICD-10D68.0NTBTattributedvalidated
ICD-113B12NTBTindexvalidated
MONDO0015629Evalidated
UMLSC1282971Evalidated

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

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
VWFDisease-causing germline mutation(s) inAssessedHGNC:12726ENSG0000011079961316012p13.31von Willebrand factor20301765[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