Immunophenotypic study of non-Hodgkin lymphomas in adult and elderly patients at National Center of Hematology-Baghdad.


Background: Non-Hodgkin lymphomas (NHL) are a heterogeneous group of lymphoproliferativemalignancies with different patterns of behavior and responses to treatment. The understanding andhistopathological diagnosis of NHL has improved with the use of advanced technology. Theimmunophenotyping of tumors of hematopoietic origin serves in the first place to distinguish theseneoplasms from others, and to distinguish neoplasms from reactive processes.Objectives: The aim of this study was to determine the percent of each category of NHLPatients and Methods: Sixty eight patients who were diagnosed to have stage 4 non-Hodgkin lymphomaby histopathological examination of bone marrow aspirate and biopsy at National Center ofHematology/Baghdad were subjected to immunohistochemistry examination, two cases diagnosed ashairy cell leukemia by histopathological examination but not by immunohistochemistry as there were noCD markers available at the time of study so they were discarded from this study. Immunohistochemistrywas done either in hospital or in private laboratory for proper subtyping of the disease and yet to receivecorrect therapy and better response.Results: Cases were diagnosed as fallowsB-cell lymphoma constitute 57 cases 86.36%T-cell non-hodgkin lymphoma 6 cases 9.09%Splenic lymphoma 1 case 1.5%Mantle cell lymphoma 2 cases 3.03%Conclusion: Immunohistochemical study is a specific method to aid histopathology in proper diagnosisand subtyping of non-Hodgkin lymphoma