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  • 1
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary Classically, recall dermatitis refers to chemotherapy-induced reactivation of skin damage caused by radiotherapy months, or even years, earlier. The concept of recall dermatitis has now been extended to include radiation recall dermatitis induced by other drugs, ultraviolet radiation, extravasation of drugs, and allergic contact dermatitis. We now describe recall dermatitis along the residual cutaneous lesions of a previous thoracic herpes zoster in a patient who developed a drug eruption after oral administration of aciclovir. The most striking feature consisted of confluent linear erythema along the dermatomes previously involved by the herpes zoster episode. Histopathologic study demonstrated small foci of spongiosis, vacuolar changes involving the basal layer of the epidermis and single necrotic keratinocytes scattered within the epidermis. The papillary dermis appeared oedematous and with dilated blood capillaries surrounded by a sparse inflammatory infiltrate composed mainly of lymphocytes. Serial sections failed to demonstrate cytologic changes of herpes varicella zoster infection. We interpreted this case as an example of recall dermatitis because the widespread cutaneous eruption secondary to aciclovir was more intense in skin previously compromised by herpes varicella zoster infection. To the best of our knowledge, recall dermatitis has not been described before at the site of previous involvement by herpes zoster.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 27 (2002), S. 0 
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary Ewing's sarcoma is a malignant osseous neoplasm that affects mostly children and young adult males. Clinically, the neoplasm presents with oedema, swelling, and pain of the involved area. Histopathologically, Ewing's sarcoma consists of solid sheets of small round cells, with vesicular nuclei and scant cytoplasm, arranged in irregular masses separated by strands of fibrous tissue, with areas of necrosis en masse intermingled with intratumoural haemorrhage. Ewing's sarcoma is an extremely aggressive neoplasm and metastases to sites such as lung, pleura, other bones, central nervous system, liver, and regional lymph nodes frequently develop in early stages of the disease. Surprisingly, despite the highly aggressive biological behaviour of this neoplasm, cutaneous metastases from Ewing's sarcoma are very uncommon. We report two patients with Ewing's sarcoma of the bone who developed cutaneous metastases. As in other internal malignancies, the onset of cutaneous metastases in patients with Ewing's sarcoma indicates a poor prognosis.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 38 (1989), S. 237-248 
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The influence of three different catalysts [triethylendiamine (TD), stannous octoate (SO), and dibutylindilaurate (DBTDL)] and their blends (TD + SO and TD + DBTDL) on the kinetics of a RIM formulation, based on a high functionality polyether-polyol and a polymeric MDI, has been studied using the adiabatic temperature rise method and Fourier transform infrared spectroscopy. The synergism observed in the DBTDL/TD systems is explained by means of complex formation between the amine-based and metal-based catalysts. Infrared spectroscopy data support this complex formation. The SO/TD systems do not exhibit synergetic behaviour, being the reaction rate controlled by the metal catalyst which complexes the isocyanate group.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
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