Case: 63, M, 14 years, Indian

DiseaseAssertion: VWD type 3

FamilyInfo: no family history of disease, Consanguinity: yes

ParentalGenotype: n/a

CasePresentingHPOs: n/a

CaseHPOFreeText: FVIII:C: (U/dl): 7.5, VWF:Ag (U/dl): <1, Bleeding Score: 16

CaseNotHPOs: n/a

CaseNotHPOFreeText: n/a

CasePreviousTesting: n/a

Gene: VWF

Variant:

c.3931C>T (p.Gln1311*), Exon 28

c.4027A>G (p.Ile1343Val), Exon 28

c.4079T>C (p.Val1360Ala), Exon 28

Homozygous

Case: 66, F, 5 years, Indian

DiseaseAssertion: VWD type 3

FamilyInfo: no family history of disease, Consanguinity: no

ParentalGenotype: n/a

CasePresentingHPOs: n/a

CaseHPOFreeText: FVIII:C: (U/dl): 1.4, VWF:Ag (U/dl): 2.3, Bleeding Score: 6

CaseNotHPOs: n/a

CaseNotHPOFreeText: n/a

CasePreviousTesting: n/a

Gene: VWF

Variant:

c.3862C>G (p.Leu1288Val), Exon 28

c.3931C>T (p.Gln1311*), Exon 28

c.3951C>T (p.Ala1317Ala), Exon 28

c.4027A>G (p.Ile1343Val), Exon 28

Heterozygous

Case: T090, M, 2

DiseaseAssertion: VWD type 3

FamilyInfo: inherited heterozygous gene conversion from the father

CasePresentingHPOs: n/a

CaseHPOFreeText: Bleeding Score: 8 (Kruskal–Wallis followed by Mann–Whitney U post-hoc testing Post-hoc testing ), VWF:Ag (IU/ml): 0.01, VWF:RCo (IU/ml): 0.04, FVIII:C (IU/ml): 0.01

CaseNotHPOs: n/a

CaseNotHPOFreeText: n/a

CasePreviousTesting: n/a

Gene: VWF

Variant:

c.1117C>T (p.Arg373*)

Gene Conversion (

c.3931C>T (p.Gln1311*)

c.4027A>G (p.Ile1343Val)

c.4079T>C (p.Val1360Ala)

c.4105T>A (p.Phe1369Ile)

)

Exon 10/28

Compound heterozygous

Note: ELISA-based assay for detecting alloantibodies, genomic analysis via sequencing of leukocytes for the VWF gene including exons 1-52 and about 1.5 km of VWF promoter, PCR amplification for variant confirmation, SALSA-MLPAVWF assay evaluation for partial/total gene deletions when sequencing did not reveal pathogenic explanation