[Immune-haematological diagnosis of neonatal immunothrombocytopenia (author's transl)]

The diagnosis of immunologically caused platelet deficiencies in newborn infants requires use of methods permitting demonstration of platelet auto- and allo-zntibodies, complete and incomplete antibodies. Taking the well known differentiation of neonatal immunothrombocytopenias into auto- and allo-immune diseases as a basis, the immune-haematological findings in eight cases are reported. For the first time two cases are reported in which both idiopathic thrombocytopenic purpura of the mother was known and allo-immunisation against paternal HLA antigens of the child could be demonstrated.