Von Willebrand disease
Von Willebrand disease (VWD), first described by Erik von Willebrand in 1926, is the most common inherited bleeding disorder, caused by deficient or defective von Willebrand factor; types 1, 2 (2A/2B/2M/2N), and 3; diagnosed by VWF tests; treated with desmopressin and VWF concentrates.