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  • 1
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Dreidimensionale Rekonstruktion ; 3D ; Dermatohistopathologie ; Morphologie ; Keywords Three-dimensional reconstruction ; 3D ; Histology ; Dermatology ; 3d ; Morphology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Background and Objective. The combination of digital image-analysis and computer-reconstruction of the three-dimensional architecture of the human skin can make this method usable on an acceptable time scale. Patients/Methods. We used biopsies of different diseases (malignant melanoma, lichen planus, psoriasis) and of normal skin. Immunhistologically stained sections were digitized and adjusted with respect to features of interest using the interlaced mode of an commercial image analysis system (Lucia G, Nikon GmbH, Düsseldorf). The sections have been segmented and the resulting three dimensional data sets were visualized on a UNIX based work station. Results. Three dimensional reconstruction provides a different view into the architecture of normal and diseased skin: for example, the course of the duct of sweat glands or the perforation of a malignant melanoma through the underlying infiltrate. Conclusions. A new rapid reconstruction method is presented producing multidimensional histological images of the skin within a few hours. This automation is of interest in basic research and should find its way into routine histological diagnosis.
    Notes: Zusammenfassung Hintergrund und Fragestellung. Die Kombination von computergestützter Bildanalyse und dreidimensionaler Rekonstruktion ermöglicht die wirklichkeitsgetreue Darstellung und Analyse der dreidimensionalen Architektur der menschlichen Haut bei akzeptablem Zeitaufwand. Patienten/Methodik. Verwendet wurden exemplarisch die im Rahmen der Routinediagnostik entnommenen Probebiopsien von 3 Patienten mit unterschiedlichen dermatologischen Krankheitsbildern (malignes Melanom, Lichen ruber, Psoriasis vulgaris) und Biopsien gesunder Haut. Die immunmarkierten, digitalisierten Serienschnitte wurden mithilfe des Bildanalysesystems Lucia (Nikon GmbH, Düsseldorf) im sog. Interlaced-Verfahren digitalisiert. Die dreidimensionalen Datensätze wurden segmentiert und an einer UNIX-Workstation visualisiert. Ergebnisse. Die dreidimensionale Rekonstruktion gibt Einblick in die Architektur der pathologischen und physiologischen Histologie, wie beispielsweise der charakteristischen Windung der Schweißdrüsenausführungsgänge unterhalb der Epidermis. In der Dermatoonkologie kann der punktuelle Durchbruch eines malignen Melanoms durch das unterliegende Infiltrat nachgewiesen werden. Schlussfolgerungen. Die Automatisierung zeigt neue Anwendungsmöglichkeiten der dreidimensionalen Rekonstruktion mittels digitalisierter Bilder mit einem hohen Maß an Objektivität bei standardisierten Bearbeitungs- und Färbeverfahren. Diese Darstellung ist ein hilfreicher Beitrag zur Diagnostik in der Dermatohistopathologie und Dermatohistologie.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of epidemiology 9 (1993), S. 591-598 
    ISSN: 1573-7284
    Keywords: Malignant melanoma ; Skin cancer ; Epidemiology ; Educational work
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The growing incidence of all kinds of skin cancer is a worldwide phenomenon observed in the last decades. Malignant melanoma is of special concern because of its high death rate when in an advanced stage, poor therapeutic response and fast growing incidence. Malignant melanoma is primarily located on the skin and therefore well suited for early cancer detection. The “Deutsche Dermatologische Gesellschaft” carried out a highly successful information campaign in Germany. Under this roof we organised different campaigns. Following considerable success in a campaign in 1989, a total of 1467 patients were examined and advised in the course of a local initiative (Education Campaign “Black cancer”) in the city of Bochum (∼ 400,000 inhabitants) in the summer of 1991. In addition to full body examinations, important data were collected concerning the degree of knowledge about skin cancer, epidemiology, and the risk of skin cancer in general. As a result of the clinical examinations, 73 patients with strongly suspected skin cancer have been treated. Within this group, 14 malignant melanomas (1.0%) as well as 34 basal cell carcinomas (1.9%) were diagnosed. These numbers highly exceed the assumed risk incidence of skin cancer in Germany. Even on the assumption that the population was selective it is to be feared that a high number of individuals with skin cancer remain undetected and untreated. The majority of persons seeking advice had been motivated by the local media. The response and results of this local campaign indicate that further preventive measures for the general population in Europe are conceivable, meaningful and urgently needed.
    Type of Medium: Electronic Resource
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