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  • Lymphogranulomatosis X  (2)
  • 8 S-IgM-Untereinheiten  (1)
  • 8 S-IgM-subunits  (1)
  • 1
    ISSN: 1432-2307
    Keywords: Lymphogranulomatosis X ; (Angio)-immunoblastic lymphadenopathy ; Immunohistology ; Malignant transformation ; Prognostic factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 172 cases of lymphogranulomatosis X (LgX) were studied by light microscopy. In 53 cases immunohistological techniques for detecting intracytoplasmic immunoglobulins were applied. In the lymph nodes of all cases the nodal architecture was found to be effaced. Active germinal centres were absent, and there was a generalized, markedly increased proliferation of epithelioid venules. A polymorphic infiltrate was present in all cases. It was dominated by immunoblasts in 14%, by plasma cells in 16%, by epithelioid cells in 23% and by lymphocytes in 6% of the cases. In the remaining 41% of the cases no special type of cell predominated (mixed cell type of LgX). The clusters of clear cells present in some cases with immunoblastic predominance did not stain for intracytoplasmic immunoglobulins; in contrast, the basophilic immunoblasts exhibited a polyclonal Ig pattern. In some of the cases with lymphocytic predominance most of the lymphocytes showed abundant cytoplasm with azurophil granules. Transformation into malignant lymphoma was proven at autopsy in 5 of 38 cases (13.2%). Malignant transformation (biopsy and autopsy material) was confirmed in a total of 11 of 172 cases (6.4%) and suspected in an additional 7%. Among the malignant lymphomas were one immunologically proven B-immunoblastic lymphoma, one peripheral T cell lymphoma and 5 cases of Hodgkin's disease. An association between LgX and carcinoma was histologically verified in 7 cases. 26 cases with active germinal centres and 11 cases with only locally pronounced vascularization but with histological and cytological changes that were otherwise similar to LgX were designated as hyperimmune reactions (HR). These cases had a significantly better prognosis. Two cases that presented as HR with active germinal centres later developed into LgX. It is suggested that the disappearance of active germinal centres is important in the pathogenesis of LgX. The possibility that this may correspond morphologically to an alteration of different components of the T-cell system is discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 48 (1984), S. 99-107 
    ISSN: 1432-0584
    Keywords: Lymphogranulomatosis X ; Leukocytes ; T-suppressors ; Blood basophils
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A quantitative analysis of leukocytes in the periphere blood of 16 patients with lymphogranulomatosis X revealed the following findings: 1. The number of total leukocytes, monocytes, neutrophils, and eosinophils varied considerably and showed no clear common tendency. 2. Blood basophils were found to be clearly increased with a mean value of 0.17±0.18×109/l as compared to 55 normal donors (0.04±0.01×109/l). 3. Lymphocyte counts were within the normal range. Lymphopenia was seen in 2 patients. 4. Lymphocytes with azure granules which encompass T-suppressors were found to exceed normal values by a factor of 15. 5. In 14 cases a variable number of hyperbasophil cells were present. Lymphogranulomatosis X seems to present with a characteristic blood picture which might be of diagnostic aid.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 51 (1973), S. 389-396 
    ISSN: 1432-1440
    Keywords: B-cell lymphoma ; secretory lymphocytes ; defect of secretory mechanism ; cytoplasmic inclusions ; Russell bodies ; IgM ; macroglobulins ; 8 S-IgM-subunits ; polyacrylamid electrophoresis ; radio-immunoprecipitation technique ; single radial immuno-diffusion ; Chronische lymphatische Leukämie ; B-Zellenlymphom ; lymphatische Zellen vom sekretorischen Typ ; Sekretionshemmung ; intracelluläre Einschlüsse ; Russellsche Körperchen ; IgM ; Makroglobuline ; 8 S-IgM-Untereinheiten ; Polyacrylamidelektrophorese ; Radioimmunpräzipitationstechnik ; einfache radiale Immunodiffusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einem Fall von chronischer lymphatischer Leukämie wurden histologische, cytochemische und elektronenmikroskopische Untersuchungen des Lymphknotens sowie Immunglobulinbestimmungen des Lymphknotenhomogenates und des Blutes durchgeführt. Die Immunglobulinbestimmungen deckten eine hochgradige IgM-Vermehrung im Lymphknoten bei IgM-Verminderung im Blut auf. Ein morphologisches Äquivalent dieser IgM-Vermehrung stellte die Ablagerung PAS-positiver Cytoplasmaeinschlüsse in den neoplastischen Lymphknotenzellen dar. Diese Einschlüsse waren in Ergastoplasmasäcken dieser Zellen lokalisiert. Im übrigen beherrschten ergastoplasmahaltige „sekretorische“ lymphatische Zellen ohne cytoplasmatische Einschlüsse das elektronenmikroskopische Bild. Es handelte sich also um ein IgM-bildendes B-Zellenlymphom vom sekretorischen Typ. Die unterbliebene Abgabe der Makroglobuline in das Blut ist als Sekretverhaltung zu deuten. Da das IgM als 8 S-IgM im Gewebe vorlag, nehmen wir an, daß hier eine Polymerisationsstörung der IgM-Untereinheiten zu dem 19 S-Pentamer bestand, als deren Folge die unterbliebene Sekretion von IgM ins Blut anzusehen ist.
    Notes: Summary A lymph node of a patient suffering from chronic lymphocytic leukemia was investigated using histological, cytochemical and electron microscopic techniques. The remaining lymph node tissue and the blood were also examined for their immunoglobulin content. The immunoglobulin analysis revealed an excessive increase of IgM in the lymph node, while there was a reduced serum IgM level. A morphological equivalent of the increased IgM was constituted by the deposit of PAS-positive cytoplasm inclusions, which were embedded in distended cisternae of the ergastoplasm of the neoplastic lymph node cells. “Secretory” lymphatic cells containing ergastoplasm without inclusion bodies otherwise dominated the electron microscopic picture. The existence of a B-cell lymphoma producing IgM of the secretory type is thus demonstrated. The lack of emission of IgM into the blood has to be interpreted as the result of a defect in the secretory mechanism. As the IgM was found in the form of 8 S-IgM in the tissue, it can be assumed that a disturbance of the polymerisation of the IgM-subunits into the 19 S-pentamer existed, the result of which was the absence of secretion of IgM into the blood.
    Type of Medium: Electronic Resource
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