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. 1994 Dec;69(6):317-9.
doi: 10.1007/BF01696562.

Hemophilia A or von Willebrand disease?

J Batlle  1 , M J Blanco-Lopez, M Domenech, M Baiget, R Rocha, M F Lopez-Fernandez
Affiliations

Hemophilia A or von Willebrand disease?

J Batlle et al. Ann Hematol. 1994 Dec.

Abstract

Seven members of the same family were studied on several occasions due to a history of hemorrhages. The propositus, a 12-year-old boy, his sister, one brother, and their father all had a low plasma factor VIII (FVIII) level. Von Willebrand factor (vWF) activity, vWF multimeric analysis, and vWF factor domain for binding to FVIII were normal in all seven subjects. The sister had a normal 46XX karyotype. The study of two intragenic restriction fragment length polymorphisms (RFLPs) and two closely linked, highly polymorphic extragenic markers showed a phenotypic expression of mild hemophilia A, which suggests that the sister of the propositus is homozygous or compound heterozygous at the hemophilia A locus. She would have inherited two hemophilic genes: one from her carrier mother and the other from her father, a mild hemophiliac.

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