Hemophilia B overview

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Hemophilia B is a blood clotting disorder caused by a mutation of the Factor IX gene. It is the second most common form of haemophilia, rarer than haemophilia A. It is sometimes called Christmas disease after Stephen Christmas, the first patient described with this disease.^[1] In addition, the first report of its identification was published in the Christmas edition of the British Medical Journal.^[2]

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating [Disease] from Other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications, and Prognosis

Natural History

Complications

Prognosis

Diagnosis

Diagnostic Criteria

History and Symptoms

Physical Examination

Laboratory Findings

Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Prevention

References

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↑ Biggs RA, Douglas AS, MacFarlane RG, Dacie JV, Pittney WR, Merskey C, O’Brien JR. Christmas disease: a condition previously mistaken for haemophilia. Br Med J 1952;2:1378-1382. PMID 12997790.

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[2] Biggs RA, Douglas AS, MacFarlane RG, Dacie JV, Pittney WR, Merskey C, O’Brien JR. Christmas disease: a condition previously mistaken for haemophilia. Br Med J 1952;2:1378-1382. PMID 12997790.

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