1 Department of Hematology, Copernicus Memorial Hospital, Łódź, Poland; Department of Hematology, Medical University of Lodz, Łódź, Poland. julia_yavorska@yahoo.com
2 Department of Hematology, Copernicus Memorial Hospital, Łódź, Poland
3 Department of Radiology, Copernicus Memorial Hospital, Łódź, Poland
4 Department of Coagulation Disorders, Medical University of Lodz, Łódź, Poland
5 John Paul II Hospital, Kraków, Poland
6 Faculty of Medicine and Health Sciences, Andrzej Frycz-Modrzewski Kraków University, Kraków, Poland