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Paraphenylenediamine (PPD) is a potent skin allergen found in permanent hair dye and temporary henna tattoo ink. Several cases of adverse skin reactions to PPD have been reported in the literature. Here we present a case involving a patient who acquired a temporary tattoo while vacationing in Mexico and subsequently developed contact dermatitis at the tattoo site. He provided a history of permanent hair dye use in the past with associated cutaneous reaction. Temporary tattoos have become increasingly popular with travelers and as a result so have reports of associated allergic contact dermatitis. Of concern is cross‐reaction of PPD to related compounds, severe reactions in younger populations and sequelae including increased sensitization, permanent scarring, and persistent postinflammatory hyperpigmentation. 相似文献
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Under ordinary working conditions in which grinding fluids were used, the presence of nickel or chromates was not detectable by spot testing. Laboratory studies, however, indicate that nickel can be leached from the machined metals. 相似文献
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Estrogen dermatitis that appeared twice in each menstrual period 总被引:2,自引:0,他引:2
A 23-year-old woman presented with millet-sized red papules that were scattered over her chest and abdomen. She stated that since the age of 20, she had recurrently suffered from pruritic eruptions that coincided with ovulation and the time prior to menstruation, and that they persisted for a few days before vanishing spontaneously leaving some pigmentation. A skin biopsy specimen revealed spongiotic bullae in the epidermis and marked infiltration of lymphocytes accompanied by some histiocytes and eosinophils in the upper dermis. An intradermal test for conjugated estrogen showed an urticarial reaction that faded in about four hours. Although the test did not strictly meet the criterion (erythema to remain for more than 24 hours for papulovesicular eruptions), it was concluded that the timing of the episodes along with the result of the test suggested that a diagnosis of estrogen dermatitis was highly probable. There have been several reports of this condition since it was first reported as a distinct entity in 1995; but whatever the reasons, the flares were observed only before menstruation in these cases, despite the fact that the serum estrogen levels showed a double-peaked pattern during each menstrual period. This is considered to be a rare case of estrogen dermatitis that flared twice in each menstrual period. Limited improvement was noted in the symptoms even without treatment. 相似文献
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Megan L Calvert Ivan Robertson Hema Samaratunga 《The Australasian journal of dermatology》1996,37(1):59-60
‘Mango Dermatitis’ is the common term given to allergic contact dermatitis to the sap or skin of the fruit of Mangifera indica. Four patients presented with urticaria and eczematous rash following exposure to mangoes or the trees. Patch testing with diluted sap, crushed leaf, crushed stem and fruit skin was strongly positive. 相似文献
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A bacteriology technical officer presented with episodes of burning pruritus and urticarial-like lesions on the face and forearms. Patch testing was strongly positive for epoxy resin. The exposure was occupational to the re-formulation of microscopy immersion oil. 相似文献
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Pediatric “pet consort dermatitis”—Allergic contact dermatitis from transfer of bronopol from a pet cat
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Dathan Hamann MD Alyson Ridpath DO Esteban Fernandez Faith MD 《Pediatric dermatology》2018,35(5):e332-e333
Consort dermatitis refers to an allergic contact dermatitis caused by transfer from an intimate contact to a sensitized patient. Although close contact with other humans most commonly provokes consort dermatitis, pets have been the source in a minority of cases. We present a unique case of transfer dermatitis from a patient's cat litter to her forearms. Pediatric dermatologists should be aware of the possibility of consort or “transfer” allergic contact dermatitis from pets. 相似文献
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Dermatological responses are affected by the menstrual cycle phase in female patients, an unsurprising observation as oestrogen and progesterone affect the skin and immunological function, with oestrogen suppression of cellular immunity in particular. Exacerbation of dermatological symptoms is typically observed in either the latter phase of the menstrual cycle or during menstruation. The allergic response is diminished in the ovulatory phase and heightened in the progestinic phase. Definitive conclusions with regard to the effect of reproductive hormones on skin disorders have been somewhat hampered by a body of research that has employed diverse research parameters, such as dosage, testing sites, concentration, vehicle of irritant delivery, and method of assessment, however, individual patient sensitivity varies widely. Standardization of measurement techniques is necessary to provide reproducible results as much as individual patient variation and technique will allow. 相似文献
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Periorbital dermatitis is common and frequently difficult to treat. Patients with periorbital dermatitis often suffer severely because their disease is in such a visible location. Because of the variety of clinical appearance, the differential diagnostic considerations are often difficult. We examined the causes of periorbital dermatitis and compared the data of 88 patients from the Department of Dermatology, University Hospital Erlangen to those of the German IVDK (Information Network of the Departments of Dermatology). Between 1999 and 2004, predominant causes of periorbital dermatitis were allergic contact dermatitis (Erlangen 44 %, IVDK 32 %), atopic eczema (Erlangen 25 %, IVDK 14 %), airborne contact dermatitis (Erlangen 10 %, IVDK 2 %) and irritant contact dermatitis (Erlangen 9 %, IVDK 8 %). Less frequent causes for secondary eczematous periocular skin lesions were periorbital rosacea, allergic conjunctivitis or psoriasis vulgaris. Female gender, atopic skin diathesis and age of 40 years and older were identified as risk factors for periocular dermatitis. Common elicitors of periorbital allergic contact dermatitis were leave‐on cosmetic products (face cream, eye shadow) and eye drops with the usual allergens being fragrances, preservatives and drugs. Exact identification of relevant contact allergens and allergen elimination are essential for successful treatment. Calcineurin inhibitors are the first‐line therapy for facial atopic eczema. They may be also effective in periocular eczematous lesions of other origins although they are not approved for such use. 相似文献
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The nummular phenotype of atopic dermatitis is clinically characterized by pruritic, coin-shaped plaques that are frequently recalcitrant to treatment. In this study, a retrospective chart review was conducted to evaluate the effectiveness and safety of dupilumab in children with nummular lesions of dermatitis. Twelve out of 14 patients demonstrated significant clinical improvement at a median time of 2.5 months (interquartile range, 1–4) after dupilumab initiation. A single case of paradoxical psoriasiform eruption was the only side effect reported in our cohort. 相似文献
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A case is presented of a confectioner with a chronic hand dermatitis and positive patch test reactions to cardamom and certain terpenoid compounds present in the dried ripe seeds of cardamom. Cardamom is a popular traditional flavouring agent for baked goods and confectionery. Dermatitis from skin exposure to cardamom has to the best of our knowledge not been reported. We report one case of allergic contact dermatitis to cardamom elicited by terpenes present in the seeds. 相似文献
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Carmen Winters Mac Machan Deede Liu Garth R. Fraga 《Journal of cutaneous pathology》2013,40(2):205-205