Glanzmann's thrombasthenia is an abnormality of platelets. It is an extremely rare coagulopathy (bleeding disorder due to a blood abnormality), in which the platelets contain defective or low levels of glycoprotein IIb/IIIa (GpIIb/IIIa). As a result, no fibrinogen bridging of platelets to other platelets can occur, and the bleeding time is significantly prolonged.
Read more about Glanzmann's Thrombasthenia: Pathophysiology, Cause, Clinical Features, Treatment, Eponym