[Immunological techniques in unexplained thrombocytopenia. A case of specific diagnosis of post-transfusion purpura]

A case of post-transfusion purpura is presented. The diagnosis is based on two new techniques with immunological aspects: 1) Monoclonal Antibody Immobilization of Platelet Antigen assay (MAIPA-assay) and 2) Polymerase Chain Reaction assay (PCR-assay). MESH: Thrombocytopenia. Post-transfusion purpura. Monoclonal Antibody Immobilization of Platelet Antigen assay (MAIPA-assay). Polymerase Chain Reaction assay (PCR-assay).