Christmas disease

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Christmas disease

n.
A type of hemophilia that is caused by a deficiency of factor IX.

[After Stephen Christmas, 20th-century British boy who was first diagnosed with it.]

Christmas disease

n
(Pathology) a relatively mild type of haemophilia, caused by lack of a protein (Christmas factor) implicated in the process of blood clotting
[C20: named after S. Christmas, the first patient suffering from the disease who was examined in detail]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Christmas disease - a clotting disorder similar to hemophilia A but caused by a congenital deficiency of factor IX
bleeder's disease, haemophilia, hemophilia - congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son
References in periodicals archive ?
Kindred with combined factor XI and factor IX deficiency have been described.
1] Haemophilia occurs in approximately 1: 5,000 males with 85% having factor VIII deficiency and 10%-15% having factor IX deficiency.
Idelvion is used to replace Factor IX, a naturally occurring clotting factor that is missing (functionally deficient) or defective in people with Hemophilia B (also called congenital Factor IX deficiency or Christmas disease).
Haemophilia B is the second most common kind of bleeding disorder, also termed as factor IX deficiency.