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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Der Hautarzt 46 (1995), S. 865-868 
    ISSN: 1432-1173
    Keywords: Schlüsselwörter Klarzellakanthom (multiple) ; Blaßzelliges Akanthom ; Gruppierte Anordnung ; Histologie ; Therapie ; Key words Clear cell acanthomas (multiple) ; Pale cell acanthoma ; Grouped skin tumours ; Histology ; Therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Clear cell acanthoma is a rare, slow-growing benign epidermal tumour of adulthood. The predilection site of this usually solitary lesion is the distal part of the leg. Multiple clear cell acanthomas are very rare and are also found in other locations besides the typical site of predilection. In this paper we report on a 52-year-old man who – over a period of more than 20 years – had developed more than 100 of these tumours in all parts of his body. Although the histological diagnosis is easy, clinical recognition often proves difficult, especially in cases of multiple lesions. Different kinds of therapy for solitary and multiple lesions are discussed.
    Notes: Zusammenfassung Das Klarzellakanthom ist ein seltener, langsam wachsender, gutartiger, epidermaler Tumor des Erwachsenenalters. Prädilektionsstelle des in der Regel solitär auftretenden Tumors ist der Unterschenkel. Multiple Klarzellakanthome sind sehr selten und finden sich dann auch außerhalb der typischen Prädilektionsstelle. Wir berichten über einen 52jährigen Patienten, der in einer Zeit von über 20 Jahren weit über hundert dieser Tumoren am gesamten Integument entwickelte. Während die histologische Diagnosestellung relativ einfach ist, wird der Tumor klinisch häufig nicht erkannt, insbesondere wenn multiple Läsionen vorliegen. Die Therapiemöglichkeiten bei solitären und multiplen Läsionen werden diskutiert.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 128 (1999), S. 200-204 
    ISSN: 1432-1106
    Keywords: Key words Eye-hand coordination ; Human ; Saccade ; Vision ; Bimanual coordination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Two different drawer tasks were investigated with the aim of assessing the role of eye movements in well-coordinated hand movements. In an unimanual step-tracking task, which had a predictive and an unpredictive movement, a two-way repeated-measures ANOVA showed a significant effect of prediction on the onset of grip-force (GF) rate (300±39 ms for the predictive condition versus 394±53 ms for the non-predictive condition, P〈0.0001). Correlation coefficients, computed from the eye and the hand movements were low for the right and the left hand. The saccade was more coupled with the visual step change than with the action of the hand per se. In a second bimanual pull-and-pick task, the instruction was to pull a drawer with the left hand from a closed position to a LED-cued open position and then to grasp and reinsert a small peg in the drawer with the right hand. Correlation coefficients, computed from the latencies of saccades and of the leading left hand or of the right hand, were significant in four of five subjects. Intermanual correlations were significant in all five subjects. In conclusion, we found that the initial saccade in the unimanual task was best related with the visual step change, but was poorly correlated with the pulling/pushing hand. In the bimanual task, a moderate, but significant temporal coupling between the eyes and hand events was observed. This coupling was, however, less tight than that between both hands.
    Type of Medium: Electronic Resource
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