Science Fair Project Encyclopedia
Glanzmann's thrombasthenia
Glanzmann's thrombasthenia is an extremely rare, autosomal recessive disorder of the blood, in which the platelets lack GPIIb/IIIa. Hence, no fibrinogen bridging can occur, and bleeding time is significantly prolonged.
Clinical Features
Characteristically, there is increased mucosal bleeding:
- epistaxis
- menorrhagia
- increased bleeding post-operatively.
The bleeding tendency is variable but may be severe.
Patients present with moderate bleeding and normal platelet morphology. Aggregation of platelets occurs in response to ristocetin, but not to other agonists such as ADP, thrombin, collagen or adrenalin.
See also:
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details