Ann Dermatol Vener
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The behaviour of Sarcoptes scabiei var. suis has been studied in hyperkeratotic scabies of pigs (fig. 1). The scanning electron microscope enabled us to observe the outer surface of the eggs in the burrow and even within the cut body of the fertilized female mite (fig. 2). ⋯ Although some of these aspects have not been published previously we observed many similarities in behavior between Sarcoptes scabiei var. hominis and suis in their respective hosts affected with hyperkeratotic scabies. As to the therapeutic aspect of scabies in humans, carefully selected drugs currently used in the systemic treatment of scabies in pigs would be worth a trial in patients difficult to treat.
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Four patients suffering from cement burns are reported. Lesions consist of sharp-edged necrotic ulcerations, leaving hypertrophic scars after a normal course of six weeks to two months. Patch-tests are constantly negative in all patients. ⋯ Cement burns are therefore considered to be alkaline burns. An increased use of premixed cement by non-occupational users play an important role in the actual frequency of such lesions. Mandatory preventive measures are needed; correct use of cement, adequate protective garments, cleaning and drying of the skin after work, etc.
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Two infants presenting with Kasabach-Merritt syndrome point out several points: the hemangioma may look innocuous with small proportions. The coagulopathy may be represented by a simple thrombopenia or an intravascular coagulation (PDF, ethanol test) of bad prognosis. ⋯ Radiotherapy is proposed in cases of emergency. Heparin and antifibrinolytic treatments are restricted to cases with severe coagulopathy.