Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0023418 (leukemia)
 93,477 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A case of 75 year-old man is reported, who died of a tuberculous leptomeningomyeloencephalitis complicating a generalized primary lymph node plasmacytoma. The malignant lymphoma has been diagnosed in a lymph node biopsy from the right supraclavicular region seven years before the death and was treated with cytostatics over a period of four and a half months. Autopsy revealed the neoplastic involvement of supraclavicular and axillary lymph nodes, tumour infiltration of the sternum and diffuse neoplastic plasmacytosis of the bone marrow. The lymph node plasmacytoma has to be differentiated from reactive lymph node plasmacytosis, angioimmunoblastic lymphadenopathy with excessive plasmacytosis, lymphoplasmacytic immunocytoma, metastasis of an extramedullary plasmacytoma or of a multiple myeloma, and from a lymph node involved by plasma-cell leukemia.
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PMID:[Diagnosis and differential diagnosis of primary lymph node plasmacytomas]. 54 1

Twenty-three human haematopoietic cell lines, normal and mitogen stimulated peripheral blood lymphocytes and tumour material from fresh leukaemias, myelomas and lymphomas were investigated with a panel of cytochemical reactions. Normal and mitogen stimulated lymphocytes, non-neoplastic lymphoblastoid cell lines (LCL), lymphoma lines with B-lymphocyte characteristics, chronic lymphocytic leukaemia and fresh lymphocytic lymphomas reacted weakly or negatively with all stains. T-lymphocyte acute leukaemia lines were PAS and alpha-naphtyl acetate esterase positive. Myeloma lines and fresh myelomas were strongly beta-glucoronidase positive. A histiocytic lymphoma cell line was strongly esterase positive with naphtol AS-D acetate esterase inhibited by NaF. The three fresh histiocytic lymphomas, however, reacted as the lymphocytic lymphomas suggesting a lymphoid origin. A myeloid leukaemia line was strongly positive for acid phsophatase. No major disagreement was noted between the reactivity of established neoplastic lines and the corresponding fresh biopsy cells indicating an unaltered qualitative expression of enzyme production after prolonged in vitro culture.
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PMID:Cytochemical profile of human haematopoietic biopsy cells and derived cell lines. 60 76

Tasmania, an island state of the Australian Commonwealth with a population of 400,000 of predominantly Anglo-Saxon heritage, has relatively centralized oncology services. A study was undertaken of all patients known in December 1971 and of all new cases diagnosed since January 1972 with all forms of leukemia, Hodgkin's disease, non-Hodgkin's lymphoma, myeloma, and other myeloproliferative and lymphoproliferative disorders. Data were obtained with respect to lifetime residential and occupational history, schools attended, and known familial cases of any of the myeloproliferative and lymphoproliferative disorders.
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PMID:Lymphoproliferative and myeloproliferative disease in Tasmania. 61 44

An increased mortality from lung cancer, cardiovascular disease, haematolymphatic malignancy and cirrhosis of the liver has been reported among smelter workers and others exposed to arsenic. This study uses the case-referent (case-control) technique and is concerned with workers in a copper smelter in a complex work environment, characterised by the presence of trivalent arsenic in combination with sulphur dioxide and copper, and also with other agents. Lung cancer mortality was found to be increased about five-fold and cardiovascular disease about two-fold, showing a dose-response relationship to arsenic exposure. Mortality from malignant blood disease (leukaemia and myeloma) and cirrhosis of the liver was also slightly increased. This mortality pattern among the smelter workers is consistent with earlier reports. An increased mortality from cardiovascular disease in this type of industry is of particular interest as it has been reported only once before.
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PMID:Arsenic exposure and mortality: a case-referent study from a Swedish copper smelter. 62 94

A survey was carried out in 2 country areas of New South Wales with the aim of defining contacts among patients with lymphoma, leukemia and myeloma, and of determining whether these were more numerous than among matched controls from the same localities. Cases were identified from records of the N.S.W. Central Cancer Registry and of local doctors and hospitals. 184 cases were found, corresponding to the expected number, and 145 patients, as well as the same number of controls, were interviewed. Of the 290 patients and controls surveyed 111 (38.3%) had had one or more contacts with other patients or controls (37.9% of patients and 38.6% of controls). There were 24 case-case pairs involving contacts among 33 individual patients, 23 control-control pairs involving 36 individuals, and 38 case-control pairs involving 66 individuals. A statistical analysis using a weighting system showed that numbers, closeness and duration of contacts among patients and patients did not differ significantly from those expected. These results thus provide no evidence in favor of the hypothesis that the diseases were transmitted from patient to patient in the survey areas.
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PMID:Contacts among patients with hematological malignancies. 65 1

In a study of 71 autopsies in patients with malignant haematological disorders (55 leukaemias and 16 multiple myelomas) we found an increased number of megakaryocytes in the lung capillaries in only one of 55 cases of leukaemia (43 acute and 12 chronic leukaemias) with a mean value of 3 megakaryocytes per cm2. The incidence of pulmonary megakaryocytes in 16 cases of multiple myeloma was identical to that in an unselected, consecutive series of hospital autopsies. The discrepancy between the increased megakaryocytopoiesis and previously reported high number of circulating megakaryocytes in chronic myeloid leukaemia, and the few megakaryocytes in the pulmonary blood vessels of histological sections of autopsy specimens is discussed.
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PMID:Megakaryocytes in pulmonary blood vessels. 2. Relations to malignant haematological diseases especially leukaemia. 71 91

With the object of examining the anti-tumour effect of exogenous interferon therapy in man a research programme has been initiated at the Karolinska Hospital. Established cell lines obtained from patients with Burkitt's and other types of lymphoma, leukaemia, osteosarcoma, mammary carcinoma and fibrosarcoma and from fibroblast cultures displayed a variable sensitivity to the cell multiplication inhibitory activity of interferon. All the monolayer cultures tested were found to be sensitive to interferon at concentrations between 10 and 300 units/ml. Some lymphoma cell lines were not sensitive to interferon even at concentrations as high as 10.000 units/ml, while others were sensitive at concentrations between 2 and 300 units/ml. The interferons tested appeared to show a degree of tissue specificity. Controlled studies in vivo are being performed on osteosarcoma, juvenile papilloma of the larynx, multiple myeloma and small-cell carcinoma of the lung. The clinical results of this research obtained to date, together with the results obtained in model experiments, would appear to warrant accelerated production of human interferon.
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PMID:Interferon therapy for neoplastic diseases in man in vitro and in vivo studies. 72 40

Immunological factors are involved in all aspects of the lymphomas and leukaemias. The aetiology of these diseases is related at least in some cases to immunodeficiency, immunostimulation, autoimmunity and a dysregulation of the immune system. The majority of lymphomas and leukaemias are monoclonal proliferations of the B-lymphocyte series at different stages of maturation while some are derived from T lymphocytes and others have no recognisable B or T-cell markers. Each of the lymphoid malignancies has a characteristic and unique pattern of immunological deficiency, suggesting a unique aetiology. Hodgkin's disease and histiocytic lymphoma, the acute leukaemias and chronic myelogenous leukaemia have predominantly cell-mediated immune deficiencies, while lymphocytic lymphoma, chronic lymphocytic leukaemia, multiple myeloma, and the plasma cell dyscrasias have predominantly humoral immune deficiencies. There is a relationship between immunocompetence and prognosis and between immunocompetence and extent of disease in the lymphomas and leukaemias. Immunocompetent patients have a better prognosis and more limited disease than immunoincompetent patients. Therapy for these diseases profoundly suppresses host defence mechanisms, particularly those which are cell-mediated. Ability to resist or recover from this immunosuppression is also associated with an improved prognosis. Lymphoma and leukaemia also induce a tumour-specific immune response in the tumour-bearing host and this also correlates with prognosis. These factors form a rational basis for immunotherapy and indeed lymphomas and leukaemias respond to active nonspecific immunotherapy with BCG and active specific immunotherapy with tumor cells resulting in prolongation of remission duration and survival.
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PMID:Effect of haematological malignancies and their treatment on host defence factors. 78 32

This investigation was based on the analysis of 580 autopsy records of patients with plasma cell myeloma or any type of leukemia. The data were collected by the Department of Pathology at Roswell Park Memorial Institute between 1956 and 1965. The primary purpose of this paper was to elucidate the metastatic process in myelomas and different types of leukemia. Two mutually exclusive hypotheses were tested, i.e. whether the spread of a cancer from the primary tumor throughout the body was due to a simple diffusion or if a cascade process took place. The basic definition of the "cascade or multistep" diffusion of cancer is that it takes place in steps; that is, at least one intermediate step is usually required for the disease to progress from the primary tumor to generalized dissemination throughout the body. It appeared that either the liver or spleen are the two major diffusing sites; that is, no generalized metastasis occurs unless the spleen and/or liver are seeded first.
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PMID:The metastatic spread of myeloma and leukemias in men. 80 47

Thirty-four patients with an IgM M-component were evaluated for clinical presentation and course, laboratory data, and histologic findings. An attempt was made to ignore the presence of the IgM M-component and to assign each patient to one of the following categories: Waldenstrom's macroglobulinemia, IgM myeloma, Hodgkin's disease, lymphoma, chronic lymphocytic leukemia, chronic lymphosarcoma cell leukemia, and IgM M-components not associated with an identifiable lymphoproliferative disorder ("benign" M-component). Although transitional forms occasionally occurred, most patients could be readily categorized. The patients with lymphoma, Hodgkin's disease, chronic lymphocytic leukemia, and chronic lymphosarcoma cell leukemia did not appear to behave differently from patients with these disorders who did not have serum IgM M-component. Both for descriptive convenience and for clinical management, continued attempts should be made to separate patients with IgM M-components according to their underlying conditions.
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PMID:The clinical correlates of IgM M-components: an analysis of thirty-four patients. 80 3


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