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  • 1
    Electronic Resource
    Electronic Resource
    Radiative muon capture on carbon, oxygen, and calcium
    Amsterdam : Elsevier
    Nuclear Physics B (Proceedings Supplements) 13 (1990), S. 322-324 
    Details
    ISSN: 0920-5632
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0920-5632(90)90077-8
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  • 2
    Electronic Resource
    Electronic Resource
    Accessory cells in Crohn's disease of the terminal ileum (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Histopathology 28 (1996), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We present a study which describes the immunophenotype and distribution of accessory cells in 13 resections of terminal ileum from patients with Crohn's disease. A panel of antibodies working in paraffin-embedded tissue was employed and these included PGM1 (CD68), S-100 protein, WR18 (HLA class II), factor XIIIa and acid cysteine proteinase inhibitor. This study revealed a heterogeneity of accessory cell populations which was profoundly influenced by local inflammatory and repair mechanisms. Both acid cysteine proteinase activity and S-100 protein positive cells are identified in more actively inflamed areas. The acid cysteine proteinase activity positive dendritic cell population was particularly numerous in ulcer bases. S-100 protein positive dendritic cells had a more limited distribution in close proximity to the epithelium in inflamed but otherwise intact mucosa adjacent to the areas of ulceration. PGM1 revealed normal distribution of macrophages within histologically uninvolved areas and, in addition, also stained granulomas and large numbers of dendritic cells in the inflamed, ulcerated and scarred areas. Factor XIIIa positive dendritic cells were especially numerous in areas of active scarring where they co-localized with PGM1 positive cells. They were largely absent from the more superficial ulcerated areas. HLA class II was strongly expressed on mononuclear inflammatory and dendritic cells. The strength of epithelial staining for HLA class II reflected the intensity of adjacent inflammation, except on ulcer-associated epithelium which consistently showed up-regulation independent of the severity of the inflammatory process. This study shows that localized alterations in the accessory cell distribution in Crohn's disease correlate with different states in the evolution of the inflammatory and repair process of the disease. The more acute lesions are associated with recruitment of acid cysteine proteinase activity and S-100 protein positive dendritic cells while factor XIIIa stained dentritic cells are especially numerous in areas of scarring.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2559.1996.d01-416.x
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  • 3
    Electronic Resource
    Electronic Resource
    Low-grade B-cell lymphomas of the splenic marginal zone: a clinicopathological and immunohistochemical study of 14 cases (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 27 (1995), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We have studied 14 cases of low-grade, splenic marginal zone, B-cell non-Hodgkin's lymphoma. The clinical presentation in all cases was with splenomegaly and, in 10 cases, circulating neoplastic lymphoid cells in the peripheral blood with involvement of bone marrow. In all cases the splenic white pulp was hyperplastic with expansion of marginal zones and varying degrees of infiltration of germinal centres by neoplastic cells. The cells were a mixture of medium sized lymphocytes with moderate amounts of cytoplasm and finely dispersed nuclear chromatin, together with occasional blast cells with small nucleoli. Satellite red pulp aggregates of tumour cells centred on small epithelioid cell clusters were seen in all cases. These appear to be a characteristic and diagnostically important feature of splenic marginal zone lymphoma. The tumour cells expressed CD20, CD45RA, bcl-2 and the antigens detected by MB2. All cases expressed IgM with light chain restriction. In addition, IgD was expressed in four cases. The follicular dendritic cell network was disrupted in those follicles which were infiltrated by tumour cells. A network of stromal myoid cells, at the periphery of the marginal zone, identified by expression of α-smooth muscle actin, was preserved. Alpha-smooth muscle actin positive dendritic cells were also seen within and around satellite tumour nodules in the red pulp.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1995.tb00021.x
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  • 4
    Electronic Resource
    Electronic Resource
    Lymphomas of Waldeyer's ring (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 24 (1994), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1994.tb01281.x
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  • 5
    Electronic Resource
    Electronic Resource
    Orange-red birefringence of gold particles in paraffin wax embedded sections (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 24 (1994), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Chrysiasis, the systemic deposition of gold pigment in patients on long term chrysotherapy, is identified histologically as small black granules within macrophages. Histological sections from 12 confirmed cases of chrysiasis were examined under crossed polarized light. This revealed a striking orange–red birefringence of the pigment not detected in other histologically similar deposits. This technique provides a valuable adjunct to the histological identification of gold without the need to resort to ultrastructural and analytical procedures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1994.tb01300.x
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  • 6
    Electronic Resource
    Electronic Resource
    The morphological spectrum of monocytoid B-cell lymphoma and its relationship to lymphomas of mucosa-associated lymphoid tissue (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 21 (1992), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We report 10 cases of monocytoid B-cell lymphoma, five of which had extranodal lymphomas of mucosa-associated lymphoid tissue (MALT) type. In one patient the MALT lymphoma in the salivary gland was microscopic. In another, the small bowel lymphoma, which preceded the monocytoid B-cell lymphoma by 11 years, showed different clonal immunoglobulin gene rearrangements. Attention is drawn to the extreme degree of plasmacytic differentiation and epithelioid cell infiltration that may occur in monocytoid B-cell lymphoma. In addition to the cytological and immunophenotypic likeness of monocytoid B-cells and centrocyte-like cells, monocytoid B-cell and MALT lymphomas share a number of micro-anatomical and behavioural characteristics. These include the sharp separation of the monocytoid B-cells and plasma cells, follicular colonization and progression to high-grade lymphoma. It is suggested that the frequent association of monocytoid B-cell lymphoma with Sjögren's syndrome may be due to the fact that the salivary glands drain to cervical lymph nodes that are part of the systemic, rather than the mucosal, lymphocyte circulation pathway.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1992.tb00444.x
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  • 7
    Electronic Resource
    Electronic Resource
    Lymphocyte predominance Hodgkin's disease—an immunohistochemical study (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 16 (1990), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Lymph node biopsies from 57 local and referred cases, previously diagnosed at Southampton between 1978 and 1987 as lymphocyte predominance Hodgkin's disease were examined using the monoclonal antibodies MT1, UCHL1, L26, LN-1, E29/68 (EMA), Leu-M1 (CD15) and Ber-H2 (CD30). Of the 34 cases with a nodular architecture, 21 (19 male, two female) contained polylobated Reed-Sternberg cell variants with a B-cell phenotype, which lacked expression of CD15. In all cases, the polylobated cells showed positive staining with L26 and LN-1. Six cases expressed EMA and three showed positive staining with Ber-H2. Two cases lacking polylobated cells were reclassified as reactive follicular hyperplasia with progressive transformation of germinal centres. The remaining 11 cases had an atypical immunophenotype and were reclassified, mainly as mixed cellularity Hodgkin's disease. In six cases, the lymph node architecture showed a mixture of nodular and diffuse growth patterns. Five of these cases contained polylobated cells with the typical morphology and immunophenotype of those seen in nodular lymphocyte predominance Hodgkin's disease. The sixth case contained cells expressing CD15, and was reclassified as nodular sclerosing Hodgkin's disease. Of the fifteen biopsies with a diffuse architecture, four contained polylobated B-cells lacking expression of CD15. These were considered to be diffuse lymphocyte predominance Hodgkin's disease. The remaining 11 cases were reclassified as either Hodgkin's disease, mixed cellularity or as T-cell lymphomas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1990.tb01084.x
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  • 8
    Electronic Resource
    Electronic Resource
    Primary gastric lymphoma—a tumour of mucosa-associated lymphoid tissue. A histological and immunohistochemical study of 36 cases (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 8 (1984), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A series of 36 cases of non-Hodgkin's lymphoma of the stomach have been analysed using routine histological techniques and immunohistochemistry. All cases were categorized as follicle centre cell lymphomas. Apart from two cases who had nodal lymphomas followed by gastric lymphomas, all cases appeared to represent primary lymphoma of mucosa-associated lymphoid tissue. It is proposed that the morphology and behaviour of these tumours reflect their origin from gutassociated lymphoid tissue. Physiologically well-differentiated examples show monotypic plasmacytic differentiation. Infiltration of gastric glands by follicle centre cells forming characteristic lympho-epithelial lesions is, we believe, a pathognomonic feature of primary gastric lymphoma. The spread of these tumours is within the mucosa-associated lymphoid tissues involving, in particular, the nasopharynx and lung but seldom spreading to peripheral lymph nodes or bone marrow. This concept of gastric lymphomas as primary neoplasms of gut-associated lymphoid tissue has important implications with respect to the investigation and treatment of this disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1984.tb02418.x
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  • 9
    Electronic Resource
    Electronic Resource
    Accessory cells in physiological lymphoid tissue from the intestine: an immunohistochemical study (1996)
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Histopathology 28 (1996), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We report a study of the organization of accessory cell populations, in normal mucosal lymphoid tissue from small intestine (8 cases), large intestine (6) and appendix (9) using a panel of monoclonal antibodies and polyclonal antisera in paraffin-embedded tissue. Two populations were identified in dome areas, one positive for acid cysteine proteinase inhibitor and HLA class II (WR18) only and the second positive for S-100 protein, CD68, and WR18 and negative for acid cysteine proteinase inhibitor and factor XIIIa. Superficial colonic mucosal and small intestinal villous tip macrophages stained positively with CD68 and WR18 only, while deeper cryptal and submucosal populations exhibited additional positivity for factor XIIIa, but both populations were negative for acid cysteine proteinase inhibitor and S-100 protein. Germinal centre macrophages were positive for CD68, WR18 and acid cysteine proteinase inhibitor and negative for factor XIIIa, and S-100 protein. T zone dendritic cells included a population which stained positively for S-100 protein, WR18 and were negative for factor XIIIa, CD68 and acid cysteine proteinase inhibitor, an immunophenotype typical of interdigitating dendritic reticulum cells. This distribution of phenotypically identifiable accessory cell subpopulations was apparent at all three sites examined. We suggest that the specialized subpopulations of dendritic cells staining for S-100 protein and for acid cysteine proteinase inhibitor which are restricted to the dome areas, may have a potential role in the transfer of antigen across the epithelium to the germinal centres, while factor XIIIa appears to identify a tissue macrophage population with a potential role in stromal modulation distant from direct antigen challenge.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2559.1996.d01-417.x
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  • 10
    Electronic Resource
    Electronic Resource
    Adenocarcinoma of the pancreas of childhood: a report of two cases (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 4 (1980), S. 0 
    Details
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The clinical, gross anatomical, light microscopic and ultrastructural features of two cases of adenocarcinoma of the pancreas of childhood are presented and compared with adult carcinoma of the pancreas. Both tumours showed acinar differentiation and zymogen granules were demonstrated by electron microscopy. A limited immunohistochemical study suggests that staining for α1-antitrypsin may provide a marker for acinar differentiation. The histogenesis of this tumour is discussed in relation to the possible origins of islet cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2559.1980.tb02901.x
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