**Autoimmune-Associated Hemophagocytic Syndrome/Macrophage Activation Syndrome**

 Maciej Machaczka1, Wojciech Sydor2, Małgorzata Rucińska3, Marta Szostek3 and Jacek Musiał<sup>2</sup> *1Hematology Center, Karolinska University Hospital Huddinge, Stockholm 2The Second Chair and Department of Internal Medicine, Collegium Medicum,Jagiellonian University, Kraków 3Chair and Department of Hematology, Collegium Medicum, Jagiellonian University, Kraków 1Sweden 2,3 Poland* 
