von Willebrand Diseases

**Definition:** Group of hemorrhagic disorders in which the VON WILLEBRAND FACTOR is either quantitatively or qualitatively abnormal. They are usually inherited as an autosomal dominant trait though rare kindreds are autosomal recessive. Symptoms vary depending on severity and disease type but may include prolonged bleeding time, deficiency of factor VIII, and impaired platelet adhesion.

**Tree numbers:** - C15.378.100.100.900 - C15.378.100.141.900 - C15.378.140.900 - C15.378.463.920 - C16.320.099.920

**Synonyms:** - Angiohemophilia - Hemophilia, Vascular - Vascular Pseudohemophilia - von Willebrand Disease - Von Willebrand Disorder - von Willebrand's Disease - von Willebrand's Diseases - Von Willebrand's Factor Deficiency