Case: 55-year-old Italian, male

DiseaseAssertion: VWD, Type 2B

FamilyInfo: Patient did not report any family history of bleeding and his daughter did not show any menorrhagia and hemorrhagic disorder. Genotyping for daughter was negative for variants of interest. Paternity of daughter established. Testing performed on both daughter and wife.

ParentalGenotype(s): No genotyping available on parents, as they were deceased.

CasePresentingHPOs: HP:0000421, HP:0004846, HP:0012147, HP:0030129, HP:0030130, . HP:0030132, HP:0011871, HP:0003645

CaseHPOFreeRext: aPTT,s=45.4, Fibrinogen,mg/dL=349, VFG:Ag, IU/dL=23.4, VWF:RCo, IU/dL=8.5, VWF:CBA, IU/dL=7.2, FVIII:C, IU/dL=28.2, VWFpp, %=63.4, VWF:RCo/VWF:Ag =0.36, VWF:CBA/VWF:Ag=0.31, VWFpp/VWF:Ag=2.7, FVIII/VWF:Ag=1.2,FVIII/VWF:binding, %=127.8, ADAMTS-13 act, U/dL=110.1, Platelets, ×109/L=121-166, Hb, g/dL=8.1-15.1, Blood group= A-Rh +Rh phenotype: ccDEe Kell/Cellano phenotype: kk

CaseNOTHPOs: none

CaseNOTHPOFreeText: none

CasePreviousTesting: none

GenotypingMethod: Molecular genetic analysis of the VWF gene was performed using 3100-Avant Genetic Analyzer. Sanger-sequencing procedures were carried out to validate the identified genetic variants.

PreviouslyPublished:

1) PMID: 27007659

2) PMID: 20492463

Gene: VWF

Variant:

1) c.2771G>A p.R924Q, exon 21, D′D3 domain,cis heterozygous

2) c.6532G>T p.A2178S, exon 37, cis heterozygous

HGVS:

1) NC_000012.12:g.6031493C>T, NC_000012.11:g.6140659C>T, NG_009072.2:g.98178G>A, NM_000552.5:c.2771G>A, NM_000552.4:c.2771G>A, NM_000552.3:c.2771G>A, XM_047429501.1:c.2771G>A, NP_000543.3:p.Arg924Gln, XP_047285457.1:p.Arg924Gln

2) NC_000012.12:g.5993928C>A, NC_000012.12:g.5993928C>T, NC_000012.11:g.6103094C>A, NC_000012.11:g.6103094C>T, NG_009072.2:g.135743G>T, NG_009072.2:g.135743G>A, NM_000552.5:c.6532G>T, NM_000552.5:c.6532G>A, NM_000552.4:c.6532G>T, NM_000552.4:c.6532G>A, NM_000552.3:c.6532G>T, NM_000552.3:c.6532G>A, XM_047429501.1:c.6532G>T, XM_047429501.1:c.6532G>A, NP_000543.3:p.Ala2178Ser, NP_000543.3:p.Ala2178Thr, XP_047285457.1:p.Ala2178Ser, XP_047285457.1:p.Ala2178Thr

ClinVarID:

1) 100240

2) 619942

CAID:

1) CA228368

2) CA6401974

gnomAD:

1) European (non-Finnish) 0.02225 https://gnomad.broadinstitute.org/variant/12-6031493-C-T?dataset=gnomad_r4

2) European (non-Finnish) 0.02318 https://gnomad.broadinstitute.org/variant/12-5993928-C-A?dataset=gnomad_r4