O’Gorman, Susan M.

Abstract Background Recalcitrant non‐actinic cheilitis may indicate contact allergy. Objectives This study aimed to determine the prevalence of allergic contact cheilitis (ACC) in patients with non‐actinic cheilitis and to identify the most relevant allergens. Methods We used an institutional database to identify patients with non‐actinic cheilitis who underwent patch testing between January 1, 2001, and August 31, 2011, and conducted a retrospective review of patch test results in these patients. Additional data were obtained from institutional electronic medical records. Results Ninety‐one patients (70 [77%] female; mean age: 51 years) were included in the study. Almost half (41 [45%]) had a final diagnosis of ACC. Patch testing was performed in line with universally accepted methods, with application on day 1, allergen removal and an initial reading on day 3, and the final reading on day 5. The allergens of most significance were fragrance mix, Myroxylon pereirae resin, dodecyl gallate, octyl gallate, and benzoic acid. Nickel was the most relevant metal allergen. Conclusions Contact allergy is an important consideration in recalcitrant cheilitis. Fragrances, antioxidants, and preservatives dominated the list of relevant allergens in our patients. Nickel and gold were among the top 10 allergens. Almost half (45%) of these patients had a final diagnosis of ACC. Patch testing beyond the oral complete series should be undertaken in any investigation of non‐actinic cheilitis.

Background and objectives Allergic contact dermatitis (ACD) of the vulva arises as a primary condition or develops secondary to topical agents. We aimed to describe the incidence of ACD in patients presenting with vulvar symptoms and to identify the allergens of most importance. Patients and Methods Using a database of the patch testing results from 3 geographically distinct sites, we identified patients tested to a gynecologic series between 2003 and 2010. Patients had patch testing to the standard European battery and a gynecologic series. Patch testing was in line with accepted universal methods: application on day 1, allergen removal and initial reading on day 3, and final reading on day 5. Results Ninety patients were included. Thirty-five (39%) had a relevant positive result. The 5 allergens with the highest number of cases with a relevant reaction were natural fragrance mix 2%, balsam of Peru, benzocaine 5%, fragrance mix 8%, and quaternium 15 1%. The most common gynecologic series allergen to cause a relevant reaction was terconazole. Conclusions Allergic contact dermatitis is a frequent finding in patients presenting with vulvar symptoms. We identified a relevant positive result to patch testing in 39%. We found fragrances, medicaments, and preservatives to be of most relevance.