Der Hautarzt; Zeitschrift für Dermatologie, Venerologie, und verwandte Gebiete
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Tick bite fever (boutonneuse fever) is endemic in India, Africa and especially the Mediterranean countries. It is occasionally "imported" into central European countries by tourists. ⋯ A typical primary lesion at the site of the tick's bite is an important diagnostic hint. The treatment of choice are tetracyclines.
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Two patients are reported who had the clinical picture of localized erythema scarlatiniforme desquamativum recidivans. The lesions were thought to be drug induced in a 56-year-old female patient. In the other 54-year-old male patient, staphylococcal infections may have caused the rash.
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Melanonychia striata longitudinalis is due to a focal increase in number and/or activity of melanocytes in the nail matrix, resulting in the continuous production of large amounts of melanin which are transferred to the nail cells and grow out with the nail plate. Histologically, either benign melanocytic hyperplasia, lentigo simplex, nevocellular nevus, atypical melanocytic hyperplasia or acral lentiginous melanoma may be found. ⋯ Melanonychia striata may also occur as a symptom of rare syndromes and diseases or be due to therapy. Differentiating this condition from subungual hematoma and infections with chromogenic bacteria and fungi may be difficult.
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Benign symmetric lipomatosis or Launois-Bensaude syndrome is a condition characterized by diffuse, unencapsulated, painless growth of lipomatous tissue with a peculiar symmetric topology occurring predominantly in middle-aged men. In the present study a short survey of the clinical manifestations, differential diagnosis, current pathophysiologic theories, and therapy of this disease is given. From the literature published since 1950 112 observations are reviewed with respect to alcohol abuse in the premorbid period and other coexisting illnesses. ⋯ In addition, two rare cases of benign symmetric lipomatosis in women, aged 42 and 49 years, respectively, are presented. Both were alcoholics with hepatic sequelae. The possible existence of a female morphological subtype of benign symmetric lipomatosis is ventilated and its identity with Touraine-Renault's segmental lipomatosis of the trunk suspected.
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Fully developed eccrine glands distributed over the entire integument are found only in man. The secretory mechanism is based on the active transport of sodium ions; water diffuses passively following the osmotic gradient. The thermoregulatory center in the hypothalamic region receives impulses from external and internal thermoreceptors and is modified by levels of hormones, by emotions, physical activity and pyrogens. ⋯ The idiopathic localized hyperhidrosis of axillae, palms, and soles poses a frequent therapeutic problem in the dermatologist's office. Frequently, a familial predisposition is found. To what extent the disorder may be part of a general imbalance of psychovegetative functions is not yet fully understood.