Preferred Label : Platelet-Type von Willebrand Disease;
NCIt related terms : Pseudo-von Willebrand Disease;
Alternative definition : NICHD: A rare autosomal dominant bleeding disorder characterized by abnormally enhanced
binding of von Willebrand factor (VWF) by the platelet glycoprotein Ib receptor complex.
Hemostatic function is impaired due to the removal of VWF multimers from the circulation.
It is due to a mutation in the gene encoding for platelet glycoprotein Ib alpha, resulting
in enhanced affinity for VWF. It is often misdiagnosed as type 2B von Willebrand disease
due to similarities between these two conditions. Patients present with a mild thrombocytopenia
with large platelets. Platelet aggregates are often visible in blood smears.;