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  • 1
    Electronic Resource
    Electronic Resource
    Condylar pathology in jaw dysfunction: a semi-quantitative study (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 14 (1985), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The purpose of the study was to determine whether there was any correlation between temporomandibular joint (TMJ) dysfunction and structure of the mandibular condyle. Condyli from 11 patients with TMJ dysfunction were compared with condyli from 13 patients with clinically uninvolved joints. The following histologic aspects were studied: thickness of the articular soft tissue layer; presence of undifferentiated mesenchyme; progressive and regressive remodelling; and arthrosis, features that are thought to reflect the functional load to the articular surfaces. The only difference between both groups was a higher frequency of regressive remodelling in the condyli from dysfunctioning joints. No significant differences were observed with respect to the other histologic features. It seems that mechanical stress to the joint surfaces docs not play a predominant role as a cause of clinical TMJ complaints.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1985.tb00548.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunocytochemical demonstration of intermediate filaments in a granular cell ameloblastoma (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral pathology & medicine 13 (1984), S. 0 
    Details
    ISSN: 1600-0714
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The nature and location of intermediate filament proteins (IFP) may provide new insights into the origin and differentiation of neoplastic cells. An immunofluorescent study of these IFP in a ease of a granular cell ameloblastoma revealed that all tumor cells contained the IFP keratin. Some granular cells, however, also contained the IFP vimentin, which is considered specific for mesenchymal tissues only. The implications of these observations are discussed. Study with monoclonal antibodies indicated the origin of the ameloblastoma from non-keratinized squamous epithelium. A comparison of the anti-keratin immunofluorescence pattern of the ameloblast-like cells in the present tumor with ameloblasts in the tooth germ revealed no similarities, indicating that despite some resemblance of the peripheral columnar cells to ameloblasts, these cells differ in other aspects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0714.1984.tb01398.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Multinucleate giant cells in sublabial salivary gland (1984)
    Springer
    Virchows Archiv 403 (1984), S. 247-256 
    Details
    ISSN: 1432-2307
    Keywords: Multinucleate giant cells ; Sjögren's syndromee ; Epimyoepithelial islands ; Sarcoidosis ; Immunoperoxidase technique ; Muramidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The presence of multinucleate giant cells in the sublabial salivary gland tissue in Sjögren's syndrome is an unusual phenomenon which can give rise to differential diagnostic problems. We found in 4 cases of 55 patients with Sjögren's syndrome multinucleate giant cells. In 2 of these 4 patients epimyoepithelial islands were also present. The combination of both multinucleate giant cells as epimyoepithelial islands can mimic the histological picture of a non-caseating granulomatous disease. To discriminate between an epimyoepithelial island and an epithelioid granuloma the immunoperoxidase technique with antibodies directed against muramidase appeared an useful tool. The epithelioid cells contain muramidase whereas the cells in the epimyoepithelial island do not contain this enzyme. Thus, multinucleate giant cells are a rare phenomenon in Sjögren's syndrome, therefore restricting its diagnostic significance. When they occur in Sjögren's syndrome staining for muramidase can be of help to avoid a false positive diagnosis of diseases in which non-caseating granulomatous inflammation occur, such as in sarcoidosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00694901
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effects of tissue processing techniques in acoustical (1.2 GHz) and light microscopy (1992)
    Springer
    Histochemistry and cell biology 97 (1992), S. 195-199 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In this study the influence of various tissue processing and staining techniques on the acoustical properties of liver tissue was investigated. A qualitative study was performed using ultrasound attenuation as the imaged parameter of a combined optical/acoustical microscope with a 1.2 GHz transducer. Images were made of three sets of adjacent liver sections (6 μm in thickness) which were prepared in ten different ways: fixed by alcohol or formalin; stained by hematoxylineosin (HE), toluidine blue (TB) or non-stained; sectioned by a cryostat or by a paraffin microtome. It was concluded that the images obtained from cryostat sections were of much higher quality than those from paraffin sections. Images obtained from sections that were sectioned while embedded in paraffin displayed no detail at all. No consistent effect was noticed with respect to staining by HE or TB. Alcohol fixed sections gave more detailed images than formalin fixed sections. Formalin fixation in combination with cryostat sectioning yielded many cytoplasmic vacuoles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00267311
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    Paper (German National Licenses)
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