• Familial aggregation of lymphoplasmacytic lymphoma/Waldenström macroglobulinemia with solid tumors and myeloid malignancies.

      Kristinsson, Sigurdur Y; Goldin, Lynn R; Turesson, Ingemar; Björkholm, Magnus; Landgren, Ola; Division of Hematology, Department of Medicine, Karolinska University Hospital, Solna and Karolinska Institutet, Stockholm, Sweden. (Karger, 2012)
      Lymphoplasmacytic lymphoma (LPL)/Waldenström macroglobulinemia (WM) is a B-cell disorder resulting from the accumulation, predominantly in the bone marrow, of clonally related lymphoplasmacytic cells. LPL/WM is a very rare disease, with an incidence rate of 3-4 cases per million people per year.Currently, the causes of LPL/WM are poorly understood; however, there are emerging data to support a role for immune-related factors in the pathogenesis of LPL/WM. In addition, data show that genetic factors are of importance in the etiology of LPL/WM. In this paper, we will review the current knowledge about familiality of LPL/WM and provide novel data on solid tumors and myeloid malignancies in first-degree relatives of LPL/WM patients.
    • Mesenteric panniculitis presenting with autoimmune haemolytic anaemia

      Vidarsson, Brynjar; Matthiasson, Pall; Agnarsson, Bjarni A; Onundarson, Pall T; Department of Haematology, Landspítali University Hospital, Hringbraut, IS-101 Reykjavik, Iceland. (Karger, 2002)
      Mesenteric panniculitis is a rare idiopathic inflammatory disorder that can lead to sclerosis. We describe a patient with mesenteric panniculitis presenting with abdominal symptoms and autoimmune haemolytic anaemia. The symptoms remitted after splenectomy and gradual steroid taper. This may suggest an autoimmune component in the aetiology of mesenteric panniculitis.
    • To Wash or Not to Wash? Comparison of Patient Outcome after Infusion of Cryopreserved Autologous Hematopoietic Stem Cells before and after the Replacement of Manual Washing by Bedside Thawing.

      Halldorsdottir, Anna Margret; Atladottir, Sveinlaug; Thorsteinsdottir, Margret A; Arnason, Niels A; Runarsson, Gudmundur; Jonsson, Torbjorn; Sigurjonsson, Olafur E; Reykdal, Sigrun; 1 The Blood Bank, Landspítali, The National University Hospital of Iceland, Reykjavik, Iceland. 2 Faculty of Medicine, University of Iceland, Reykjavik, Iceland. 3 Department of Hematology, Landspítali, The National University Hospital of Iceland, Reykjavik, Iceland. 4 School of Science and Engineering, Reykjavik University, Reykjavik, Iceland. (Karger, 2018-01-01)
      Prior to infusion, cryopreserved autologous peripheral blood stem cell (auto-PBSC) grafts can either be thawed at the bedside or thawed and washed at the laboratory. At our center, manual washing of grafts prior to infusion was discontinued in April 2012 and bedside thawing was implemented. This study compares the outcomes of two patient groups who received auto-PBSC either after post-thaw washing (n = 84) or bedside thawing (n = 83). No life-threatening infusion-related side effects were reported in either group. There was no significant difference in the mean CD34+ cells/kg dose of infused auto-PBSC in the two groups (p = 0.41), nor in the number of days to neutrophils > 0.5 × 109/L (p = 0.14), days to platelets > 20 × 109/L (p = 0.64), or days to platelets > 50 × 109/L (p = 0.62) after transplant. There was also no difference in the number of days on total parenteral nutrition (p = 0.69), days on G-CSF therapy (p = 0.48), or days with fever (p = 0.73). Finally, there was no significant difference in the number of red cell units transfused (p = 0.32), or platelet units transfused (p = 0.94) after the transplant. One-hundred-day mortality was identical in the two groups (2.4%). Both thawing procedures are safe and result in acceptable engraftment and patient outcomes.