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Acute Dermatitis (acute + dermatitis)
Selected AbstractsEpidemiological data on consumer allergy to p -phenylenediamineCONTACT DERMATITIS, Issue 6 2008Jacob Pontoppidan Thyssen Many women and men now dye their hair. p-Phenylenediamine (PPD) is a frequent and important component of permanent hair dye products; exposure to it may cause allergic contact sensitization, acute dermatitis, and severe facial oedema. To increase our understanding of PPD allergy, we reviewed published literature containing PPD patch test data from dermatitis patients and individuals in the general population. This was performed to estimate the median prevalence and the weighted average of PPD sensitization and thereby assess the burden of PPD-containing hair care products on health. Literature was examined using PubMed,MEDLINE, Biosis, and Science Citation Index. The median prevalence among dermatitis patients was 4.3% in Asia, 4% in Europe, and 6.2% in North America. A widespread increase in the prevalence of PPD sensitization was observed among Asian dermatitis patients. In Europe, a decrease in the 1970s was replaced by a plateau with steady, high prevalences ranging between 2% and 6%. The prevalence remained high in North America, although a decreasing tendency was observed. Contact allergy to PPD is an important health issue for both women and men. More stringent regulation and enforcement are required as public health measures to reduce the burden of disease that exposure to PPD has brought to populations. [source] European Standard Series patch test results from a contact dermatitis clinic in Israel during the 7-year period from 1998 to 2004CONTACT DERMATITIS, Issue 2 2006Aneta Lazarov The results of a 7-year retrospective study (1998,2004) from patch testing with the European Standard Series (ESS) establishing the frequency of sensitization in a contact dermatitis clinic in Israel are presented. 23 allergens were patch tested on 2156 patients, 1462 females (67.8%) and 694 males (32.2%). Atopy and asthma were present in 21.9% of the patients. One or more allergic reactions were observed in 937 patients (43.5%). The highest yield of patch test positives from the 1076 positive reactions were obtained from nickel sulfate (13.9%), fragrance mix (7.1%), potassium dichromate (3.8%), Balsam of Peru (3.6%), CL + Me-isothiazolinone (3.4%) and cobalt chloride (3.4%). Allergens which produced the least amount of positive results were primin and clioquinol. Allergic contact dermatitis (ACD) was established in 32.8%, whereas occupationally related allergic (8.0) and irritant contact dermatitis (5.6%) affected a total of 13.6% of the cases studied. The most common clinical forms of dermatitis were chronic dermatitis (47.7%) followed by acute dermatitis (22.8%), and lichenification and hyperkeratosis (7.9%). The hands (30.7%), face and neck (23.9%) and extremities (11.3%) were the most frequently affected areas. Four allergens in our study differed from the top 10 allergens in Europe namely: Cl + Me-isothiazolinone, formaldehyde, 4-tert-butylphenol formaldehyde resin and sesquiterpene lactone mix reflecting an existing difference in environmental exposure. Our study is the first to provide data on the frequency of sensitization and important allergens in the aetiology of ACD in Israel. In spite of the existing differences with Europe, we conclude that ESS is an appropriate screening system for the diagnosis of ACD in Israel. [source] Airborne contact dermatitis from methylchloroisothiazolinone in wall paint.CONTACT DERMATITIS, Issue 4 2000Abolition of symptoms by chemical allergen inactivation Preservatives such as isothiazolinones in paints have been reported to cause airborne contact dermatitis. The patients whom we report experienced acute dermatitis on air-exposed skin and respiratory symptoms after staying in recently painted rooms. Kathon® (methylchloroisothiazolinone/ methylisothiazolinone) added as preservative to the wall paint was identified as causative agent. In one individual symptoms rapidly disappeared after treatment of the painted walls with inorganic sulfur salt, which leads to inactivation of the allergenic properties of methylchloroisothiazolinone/ methylisothiazolinone. We describe the patients, the clinical course and review the literature pertinent to such cases. In addition we report on the chemical analyses of the decorating paints used, and on experiments on emission and air concentration of methylchloroisothiazolinone/methylisothiazolinone from a painted surface before and after inactivation by sodium bisulfite. [source] Cutaneous metastasis resembling acute dermatitis in patient with advanced gastric cancerCLINICAL & EXPERIMENTAL DERMATOLOGY, Issue 3 2007D. H. Koo Summary The most common metastatic sites from gastric cancer are the liver, intra-abdominal lymph nodes, ovary and peritoneal cavity. Cutaneous metastasis of gastric cancer is rare, and most cutaneous metastases are typically solitary, nodular, have a firm consistency, and are red or hyperpigmented. Thus, cutaneous metastasis is easily distinguished from other skin disease. We report a case of a 60-year-old woman with cutaneous metastasis of gastric cancer, whose facial skin showed painless pruritic eczema, resembling acute dermatitis. She had earlier undergone a total gastrectomy for advanced gastric cancer in our hospital. After 14 months, she developed eczematous facial lesions; the presumptive diagnosis was acute dermatitis. However, skin biopsy unexpectedly revealed cutaneous metastasis of gastric cancer. After 6 months of systemic chemotherapy with capecitabine and cisplatin, the cutaneous metastasis was markedly improved and a clinically complete remission was accomplished. [source] | ||||||||||