Clinical feature: 

Definition: Alloimmune thrombocytopenia is a blleding disorder of the newborn that results from maternal allo-antibodies against fetal platelets. The reason for these allo-antibodies is the fetus bears a platelet antigen inherited from its father for which the mother did not develop immuno-tolerance.

Literature: 

Kher A et al. (2007) The management of thrombosis in pregnancy: role of low-molecular-weight heparin.