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A rare inherited coagulation disorder: Combined homozygous factor VII and factor X deficiency by Marzia Menegatti; Mehran Karimi; Isabella Garagiola; PierMannuccio Mannucci; Flora Peyvandi is a Medicine article available to read on EtoBox.

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## Abstract The combined presence in the homozygous state of more than one recessively transmitted coagulation defect may rarely occur in countries with a high rate of consanguinity. In an Iranian family consisting of two parents (second cousins) and two affected siblings, initial phenotypic analysis led to a diagnosis of mild FX deficiency (10–19% FX activity, 42–54% FX:Ag), and genotyping revealed a new homozygous missense mutation in the corresponding gene (Ser3Cys). As both of the sibs had a severe bleeding history that was not compatible with mild deficiency of FX, further phenotypic analysis revealed the additional presence of severe FVII deficiency (<1% FVII activity; 63–111% FVII:Ag) associated with the homozygous missense gene mutation Cys310Phe. In this kindred, lack of identification of the double coagulation defect might have led not only to incomplete understanding of the clinical phenotype but also to an incorrect prenatal diagnosis. Am. J. Hematol. 77:90–91, 2004. © 2004 Wiley‐Liss, Inc.

Who reads A rare inherited coagulation disorder: Combined homozygous factor VII and factor X deficiency?

Author

Marzia Menegatti; Mehran Karimi; Isabella Garagiola; PierMannuccio Mannucci; Flora Peyvandi

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley; Research Square (ISSN 0361-8609)

Published

2004

Language

EN

Field

Medicine (Health Sciences)