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Query: UMLS:C0019829 (Hodgkin's disease)
 30,247 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In a study of 157 patients with lymphoid malignancy, the phenotype of the tumour cells was correlated with the histological classification of the tumour using the Rappaport and the Kiel classifications. The markers used included E, Fc gamma, Fc micron (IgM) and C3d rosetting, estimation of SIg and CyIg, and tests for the expression of HTLA, Ia and ALL. Repeat biopsy specimens were studied in 23 of these patients. The phenotypic features of lymphoblastic malignancy indicated B-cell, T-cell and ALL-positive null-cell tumours in this group. Immunoblastic lymphomas were predominantly of non-capping B-cell type, but T-cell immunoblastic lymphoma occurred in 2 patients. Immunoblastic lymphomas of receptor-silent cells occur, and are ALL- and HTLA-negative. In the category of diffuse, poorly differentiated lymphocytic lymphomas, most cases are of centroblastic and centrocytic tumour of diffuse type, but pure centrocytic tumours and centroblastic tumours occur. The dominant phenotype in this group is of B cells expressing C3d receptors. Nodular poorly differentiated lymphocytic lymphomas (Rappaport) are classified as centroblastic and centrocytic follicular (Kiel) and most express SIg+ C3d+ phenotype. The frequency of this phenotype appeared the same in both diffuse and nodular poorly differentiated lymphocytic neoplasms. The Rappaport group of diffuse well-differentiated lymphocytic lymphoma includes 2 Kiel categories, malignant lymphoma lymphocytic, and malignant lymphoma lymphoplasmacytoid. Cells of the former tumour were considered to be immature B cells resembling those seen in CLL, and characteristically expressing SIg weakly, with a high frequency of single kappa light chain. Cells of the latter tumour are by contrast mature, and are related to the centroblastic and centrocytic follicular tumour by their histogenesis and phenotypic features. Repeat biopsy examinations indicate that T-cell predominance occurs in the prodromal phase of B-cell-predominant tumours of SIg+ C3d+ phenotype. It is concluded that non-Hodgkin lymphoma can be divided into 2 categories: (1) tumours of immature immunologically incompetent cells of lymphoblastic histology and with phenotypic features akin to T, B and Null-cell ALL, and (2) tumours of differentiated lymphocytes expressing the phenotypic features of B lymphocytes, with maturation arrested at one of several stages of an antigen-dependent immune response.
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PMID:Surface phenotyping, histology and the nature of non-Hodgkin lymphoma in 157 patients. 31

Immunoblastic lymphadenopathy, although it resembles Hodgkin's disease, is a distinct, hyperimmune disorder apparently of the B-cell system. In 32 cases, it was characterized by a morphologic triad: proliferation of arborizing small vessels; prominent immunoblastic proliferations; and amorphous acidophilic interstitial material. Clinically, it is manifested by fever, sweats, weight loss, occasionally a rash, generalized lymphadenopathy and often hepatosplenomegaly. There is a consistent polyclonal hyperglobulinemia and often hemolytic anemia. The course of the disease is usually progressive, with a median survival of 15 months in 18 fatal cases. The cellular proliferation appears benign morphologically in the pretherapy biopsies and in 10 of 12 available autopsy cases. In three cases the process evolved into a lymphoma of immunoblasts, immunoblastic sarcoma. The basic process appears to be a non-neoplastic hyperimmune proliferation of the B-cell system involving an exaggeration of lymphocyte transformation to immunoblasts and plasma cells that may be triggered by a hypersensitivity reaction to therapeutic agents.
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PMID:Immunoblastic lymphadenopathy. A hyperimmune entity resembling Hodgkin's disease. 107 47

We report 21 cases of lymphomas associated with AIDS. Sixteen cases are Non Hodgkin's lymphomas of high grade malignancy. Immunoblastic B cell lymphomas are frequent: 11 cases/16, especially with extra nodal localisations. Three cases are Burkitt's lymphoma; 2 cases are large non cleaved cell lymphoma. Five cases of Hodgkin's disease are associated with AIDS related complex syndrome (ARC) showing the interest of lymph node biopsy in such patients. We analyzed 6 cases with lymphoid bone marrow infiltration and discuss the relationship between prelymphomatous states and low grade malignant lymphomas in AIDS or ARC patients.
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PMID:[Lymphomas and AIDS]. 381 66

Histiocytic reticulum cells have been counted in 160 lymph nodes, comprising 50 high grade non-Hodgkin's lymphomas, 90 lymphomas of low grade histology, and 20 specimens exhibiting reactive follicular hyperplasia. The histiocytes were shown immunohistochemically by virtue of their content of the cysteine proteinase cathepsin B. A consistent and striking finding was that high grade lymphomas contain many more histiocytes than low grade lymphomas. Immunoblastic neoplasms contain up to 24.2% of these cells, whereas low grade diffuse lymphomas possess only up to 3.6% histiocytes. Histiocytic reticulum cells were also counted in benign or malignant follicular lesions in standard areas from follicle centres only. No significant differences were found between low grade lymphomas and hyperplastic nodes. These findings are discussed in relation to previous, more limited studies.
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PMID:A quantitative study of histiocytic reticulum cells in diffuse and follicular non-Hodgkin's lymphomas. 638 2