Thrombasthenia

**Definition:** A congenital bleeding disorder with prolonged bleeding time, absence of aggregation of platelets in response to most agents, especially ADP, and impaired or absent clot retraction. Platelet membranes are deficient in or have a defect in the glycoprotein IIb-IIIa complex (PLATELET GLYCOPROTEIN GPIIB-IIIA COMPLEX).

**Tree numbers:** - C15.378.100.100.820 - C15.378.140.810 - C15.378.463.810 - C16.320.099.820

**Synonyms:** - Thrombasthenia of Glanzmann and Naegeli - Glanzmann Thrombasthenia, Type A - Deficiency of GP 2b 3a Complex - Platelet Fibrinogen Receptor, Deficiency of - Glanzmann Thrombasthenia - Glycoprotein Complex IIb-IIIa, Deficiency Of - GP IIb-IIIa Complex, Deficiency Of - Platelet Glycoprotein IIb-IIIa Deficiency - Platelet Glycoprotein 2b-3a Deficiency