Factor XII (Hageman factor) deficiency

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Overview	Symptoms	Treatment	Prevention

Factor XII (Hageman factor) deficiency

Symptoms

There are usually no symptoms.

Exams and Tests

Abnormal factor XII assay
Prolonged partial thromboplastin time

References

McPherson RA and Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 21st ed. Philadelphia, Pa.: WB Saunders; 2006.

Hoffman R, Benz Jr. EJ, Shattil SJ, et al., eds. Hematology: Basic Principles and Practice. 4th ed. Philladelphia, Pa: Churchill Livingston; 2005:2089-90.


Blood clots

Review Date: 2/26/2007
Reviewed By: William Matsui, MD, Assistant Professor of Oncology, Division of Hematologic Malignancies, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD. Review provided by VeriMed Healthcare Network.

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