Posttransplant lymphoproliferative diseases are complications that develop after solid organ transplantation. Primary EBV infection is one of the most important risk factors. After deceased kidney transplantation, we presented a young male patient diagnosed with diffuse large B-cell lymphoma.

Waldenstrom macroglobulinemia (WM) is a B-cell lymphoproliferative disorder associated with bone marrow involvement of lymphoplasmacytic lymphoma (LPL) and an IgM monoclonal gammopathy. Generally B-lymphocytes in LPL do not express CD5 that is important for differential diagnosis of B-cell lymphoproliferative disorders. In WM, various renal diseases and type I cryoglobulinemia are well describe...

EBV associated hemophagocytic lymphohistiocytosis and EBV-positive T cell lymphoproliferative disease of childhood share many histologic and clinical features, which sometimes makes it very difficult to render a definitive diagnosis. In this report, we present a 16-year-old male who developed symptoms clinically consistent with EBV associated hematophagocytic lymphohistiocytosis including fulfi...

BACKGROUND The main aim of this work was to study the effects of single whole-body irradiation (WBI) on the lymphoproliferative response in radiation-sensitive BALB/c mice. MATERIALS AND METHODS Mice were irradiated (0-5 Gy) and euthanized immediately afterward; other animals were subjected to WBI (4 Gy) and were analyzed after periods of 0-180 days. Splenic cell number, lymphoproliferative r...

1»Titu Maiorescu« University, Faculty of Medicine, Department of Physiology, Center for Rheumatic Diseases, Bucharest, Romania 2»Carol Davila« University of Medicine and Pharmacy, Clinic of Neurology, Colentina Clinical Hospital, Bucharest, Romania 3University of Medicine and Pharmacy, Department of Immunology, Craiova, Romania 4»Carol Davila« University of Medicine and Pharmacy, Clinical Hospi...

Posttransplant lymphoproliferative disorders (PTLDs) are a group of diseases that range from benign polyclonal to malignant monoclonal lymphoid proliferations. They arise secondary to treatment with immunosuppressive drugs given to prevent transplant rejection. Three main pathologic subsets/stages of evolution are recognised: early, polymorphic, and monomorphic lesions. The pathogenesis of PTLD...

Lymphoproliferative disorders are a very heterogeneous group of neoplastic diseases, which originate from malignant transformation of cells of the lymphoid system. Within broad limits, they include at least four main types of diseases: Hodgkin’s disease, the socalled non-Hodgkin’s lymphomas, the chronic lymphoid leukemias and the neoplasms of mature B antibody-producing cells, such as Waldenstr...

Lymphoproliferative disorders are rarely observed as primary lesions in the lung, representing only 0.3% of all primary pulmonary malignancies, ,1% of all the cases of non-Hodgkin lymphoma and 3–4% of all the extra nodal manifestations of non-Hodgkin lymphoma. The earliest comprehensive studies of pulmonary lymphomas were those of SALTZSTEIN [1] and PAPIOANNOU and WATSON [2], which were publish...

INTRODUCTION Systemic Epstein-Barr-virus-positive T cell lymphoproliferative disease of childhood is an extremely rare disorder, characterized by clonal proliferation of Epstein-Barr-virus-infected T cells with an activated cytotoxic phenotype. The disease is more frequent in Asia and South America, with only few cases reported in Western countries. A prompt diagnosis, though often difficult, i...

Bcl-2 is upregulated by Epstein-Barr virus (EBV) in immortalized lymphoblastoid (LCL) B cells and is expressed in the majority of EBV-associated posttransplant lymphoproliferative disorders (PTLDs). Given the antiapoptotic function and chemoprotective effects of Bcl-2, it represents a rational target for modulation using antisense oligodeoxynucleotides in Bcl-2-expressing, EBV-associated lympho...