Dermatologische Monatschrift最新文献

84 patients with contact dermatitis (38 dentists, 18 dental nurses and 28 dental technicians) were studied. All were patch tested with standard patch test series of the CMEA countries and with some professional allergens. 31 (36.9%) of them had allergic occupational contact dermatitis and 39 (46.2%) had irrtiant contact dermatitis. The highest prevalence of irritant contact dermatitis was found among dental surgeons. The percentage of atopics in the group of patients with irritant contact dermatitis was twice greater compared to that in the group of patients with allergic contact dermatitis. The contact allergens most frequently encountered were acrylic compounds, disinfectants (eugenol, thymol, trioxymethylene) mercury compunds and anesthetics.

Immunohistochemical investigations on skin lesions of lichen ruber planus indicate HLA-DR-expression by keratinocytes, Langerhans cells (LC), and infiltrated mononuclear cells. In the early stage of this condition, the lymphocytic infiltrate consists of a considerable part of (CD8+) cytotoxic/suppressor- and (LGL+) natural killer cells. Evidently, the cytotoxic potential of these lymphocyte subpopulations is directed against basal keratinocytes and epidermal LC. As a result of cytotoxic/cytolytic activities, non-cell associated CD 1-reactivity accumulates in the dermoepidermal junction zone, thus indicating damaged LC.

Using surviving human skin, percutaneous absorption following topical application of hematoporphyrin derivative was investigated. Hematoporphyrin derivative gave strong red fluorescence, which was dependent from it's actual concentration, from the used kind of vehicle, from preparation time, and from time between preparation and application of hematoporphyrin derivative solution. Ultrastructural investigation verified cytoplasmatic membranes and mitochondria as the principal targets also after topical application followed by irradiation with visible light.

The HIV-infection represents simultaneously a new and important problem. Multiple changes appear on skin and mucous membranes in all stages of the infection. These changes have an essential diagnostic significance especially in the early phase of the infection. The most important changes become represented systematically in relation to the progress of the disease.

In 12 healthy volunteers the topical application of monoethyl fumarate caused a spontaneous persistent erythema. Systemic application induced flush. In urticaria pigmentosa the influence was significant higher than in normal skin. This fact suggests a mast cell degranulation caused by monoethyl fumarate.

It is reported about an uncommon problematic tumour of the skin by means of 3 patients with a leiomyosarcoma. The own experiences in this field are compared with the not very extensive literature, and the clinical and histological criteria of diagnostic are discussed also therapeutical recommendation in consideration of the prognostic aspects are derived.

By means of an investigation on 7 patients from 3 families views are expressed on the problems of the basal cell-naevus-syndrome. The typical clinical signs appear preferentially and as first-symptoms in the jaw-bone as solitary and later developing multiple cysts. Because these first symptoms of the syndrome cause secondary, dentitio tarda (belated dentition) and displacement of the teeth, the dentist or the maxillo-facial-surgeon has a special responsibility for early diagnosis of this disease. Reference is made to the necessity of interdisciplinary cooperation and the ambulatory-care of the patients in the sense of a family registration and observation.

The data of 772 patients with malignant melanoma, treated from 1.1.1972 to 30.6.1988 in the Regional Hospital Dresden-Friedrichstadt were analysed by computer. The probability of survival was estimated separately by the method of Kaplan and Meier in dependence on clinical stage in the time of the first treatment, pT and sex. The 10-year survival rate in clinical stage I amounts to pT1 = 100%; pT2 = 82.9% +/- 4.0%; pT3 = 67.1 +/- 4.3% and pT4 = 58.0 +/- 4.7%. There are significantly differences between women and men with melanomas of the category pT2 and pT3 in favour of women (pT2: 88.6%:70.0%; pT3: 75.8%: 53.4%). In the cases of pT4 melanoma there are no differences (61%:53%). The average time of survival from these patients who have died from melanoma shows also marked differences according to pT (pT2 = 46.6 month, pT3 = 36.6 month, pT4 = 30.2 month).

The pupils of 5 elementary schools in the Dembia-District in Northethiopia were inspected in serial examinations. The transmissible skin diseases head lice infestation, tinea capitis, impetigo contagiosa and verrucae vulgares are very common among the unselected children (5 to 15 years old). Only 16% of all children had not any infectious skin disease. The investigations showed the unfortunate conditions of the poor hygiene those are existing in the rural areas of a developing country in the tropics.