Post‐transfusion purpura due to HPA‐1a immunization in a male patient: response to subsequent multiple HPA‐1a‐incompatible red‐cell transfusions

Abstract
We report a male patient who developed post-transfusion purpura. Thrombocytopenia did not recur when intravenous IgG was given before the transfusion of platelet-depleted washed red-cell concentrates.