Abnormalities of platelet function in some patients with primary, but sporadic, disorders of hemostasis have been attributed to impaired release of platelet adenosine diphosphate (ADP). This defect ...

Thrombocytopenia, inherited as a dominant trait, was present in three generations of a kindred. The clinical picture was quite similar to that of idiopathic thrombocytopenic purpura, but ...

Thrombocytopenia absent radius (TAR) affects the radius — the long, thin bone in the forearm — and platelet function. This defect commonly appears at birth or within the first few years of life.