1/142. Lymphomatoid contact dermatitis: a syndrome produced by epicutaneous hypersensitivity with clinical features and a histopathologic picture similar to that of mycosis fungoides.Four cases have been studied which were clinically suggestive of mycosis fungoides because of their infiltrated plaque-like lesions, but in which the suspicion of a topical hypersensitivity arose when a positive patch test was obtained with the striker part of a box of matches.- - - - - - - - - - ranking = 1keywords = sensitivity (Clic here for more details about this article) |
2/142. The effect of perfume "ageing" on the allergenicity of individual perfume ingredients.An ingredient of a perfume which is a sensitizer may become hypoallergenic by interacting with other ingredients during the ageing process of the perfume. Thus, a patient with an exquisite allergic sensitivity to cinnamic aldehyde tolerates two perfumes containing cinnamic aldehyde without acquiring a dermatitis. There are several theories of why cinnamic aldehyde can become a non-sensitizer in a perfume mixture. Testing with a mature perfume may be much more significant than testing with individual ingredients.- - - - - - - - - - ranking = 0.2keywords = sensitivity (Clic here for more details about this article) |
3/142. Contact urticaria to the MCU-2A/P gas mask.A case of contact urticaria to the silicone rubber in the MCU-2A/P gas mask is presented. Contact urticaria is a type I hypersensitivity reaction mediated by immunoglobulin e that usually manifests as localized erythema, edema, pruritus, and urticarial plaques. It can also cause systemic reactions, including anaphylaxis. Allergic reactions to silicone rubber have been increasingly reported and are of importance in medical and military personnel. The implication of such a diagnosis in an active duty military member is significant because the individual cannot be worldwide-qualified. The correct diagnosis of allergic skin reactions to personal protective gear is critical to maintaining a strong fighting force and protecting military personnel from potentially life-threatening allergic reactions.- - - - - - - - - - ranking = 0.2keywords = sensitivity (Clic here for more details about this article) |
4/142. Protein-contact eczematous reaction to cornstarch in clothing.Protein contact dermatitis is an eczematous reaction to antigens often associated with immediate hypersensitivity. A patient with a history of atopic eczema and multiple immediate sensitivities was seen for a persistent dermatitis of the face, hands, and clothing areas of the trunk and arms. Investigation showed a positive prick test to cornstarch, and avoidance of glove powder and starch in her clothing cleared what had been a recalcitrant problem.- - - - - - - - - - ranking = 0.2keywords = sensitivity (Clic here for more details about this article) |
5/142. Dental gold alloys and contact hypersensitivity.A total of 172 patients referred to the Norwegian National Adverse Reaction Group were patch-tested with a dental series. Of these, 25% showed a positive reaction to gold sodium thiosulfate or potassium dicyanoaurate. There was a statistically significant correlation (p=0.0019) between the presence of dental gold and a positive patch test to gold. There was a statistically significant correlation between ear piercing and a positive patch test to gold (p=0.04). In most cases, we did not find clinical correlates to positive patch tests to gold. 2 patients with objective and subjective oral/perioral and general symptoms are described as case reports. Their symptoms disappeared when gold restorations were removed. We conclude that there is an overrepresentation of gold allergies among those with dental restorations containing gold.- - - - - - - - - - ranking = 0.8keywords = sensitivity (Clic here for more details about this article) |
6/142. Immunologic evaluation of dental patient with history of hypersensitivity reaction to sodium hypochlorite.A 12-year-old girl, with a previous history of bronchial reaction and contact dermatitis to sodium hypochlorite, was referred for root canal treatment. Complete immunologic evaluation revealed a mild hypersensitivity condition, as it was assessed by the RAST investigation to different allergens and the DTH reactivity expressed though migration inhibition test. The absence of a serious immunologic disregulation in the patient's immunologic profile justified the term 'non-allergic hypersensitivity' to sodium hypochlorite to describe the condition.- - - - - - - - - - ranking = 1.2keywords = sensitivity (Clic here for more details about this article) |
7/142. Delayed cutaneous hypersensitivity reactions to hirudin.Hirudin is one of the new synthetic antithrombin agents, which is most commonly used in patients with type II heparin-induced thrombocytopenia and in patients with hypersensitivity reactions to unfractionated heparin as well as low-molecular-weight heparins. Hirudin is comparable to heparin as an antithrombotic agent and also has been studied as a primary treatment in patients who experienced acute myocardial infarctions. We describe a patient with a history of type II heparin-induced thrombocytopenia who was placed on intravenous hirudin therapy. After extravasation of the intravenous hirudin site, the patient developed a delayed hypersensitivity reaction that histologically showed an epithelioid granulomatous infiltrate. Although rare reports of hypersensitivity reactions to hirudin have been published, these reactions have not been well characterized and the histopathologic changes have not been described.- - - - - - - - - - ranking = 1.4keywords = sensitivity (Clic here for more details about this article) |
8/142. Pacemaker contact sensitivity: case report and review of the literature.Pacemaker contact sensitivity is a rare condition. Less than 25 reports of pacemaker skin reaction have been described over the past 30 years. This report describes one patient who developed contact dermatitis after implantation of two subsequent pacemakers. The diagnosis was made with skin patch tests that were positive to polyurethane 75D and polysulfone beige, two of the pacemaker and connector components. review of the literature and general guidelines for the management of this unusual condition is depicted in this report.- - - - - - - - - - ranking = 1keywords = sensitivity (Clic here for more details about this article) |
9/142. Chlorocresol sensitivity.Contact allergic sensitivity may follow the use of chlorocresol incorporated as a preservative into both betamethasone cream and aqueous cream, which are commonly prescribed as a mixture in south australia. In several cases, although the clinical courses indicated sensitivity to chlorocresol, patch test reactions to this chemical were negative. In these cases positive patch test reactions to chloroxylenol, a chemical closely related to chlorocresol, confirmed the diagnoses.- - - - - - - - - - ranking = 1.2keywords = sensitivity (Clic here for more details about this article) |
10/142. Contact sensitivity to Irgasan DP 300.Two persons had allergic contact dermatitis caused by Irgasan 0,2% in a deodorant foot-powder and 0,12% in a deodorant stick respectively. Both had positive patch test reactions to Irgasan 2% pet. One patient was further tested with Irgasan 1% pet. and 0,5% pet. She had positive reactions to these dilutions. In a blind half-sided usage test, a soap bar containing 0,5% Irgasan caused mild itching and a percepitble erythema, although the use of this soap was otherwise tolerated for one month. The soap bar without Irgasan caused no reactions. Although primary sensitization from Irgasan toilet soaps has not been reported, a previously sensitized person may react to the use of Irgasan in soaps.- - - - - - - - - - ranking = 0.8keywords = sensitivity (Clic here for more details about this article) |
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