Allergic contact derm

<u> Background: </u> Over the course of the COVID-19 pandemic, our clinic has encountered numerous patients who report that either COVID-19 vaccination or infection was the precipitating event for their development of allergic contact dermatitis (ACD). Up to this time, there is no formal investigation regarding COVID-19 vaccination or infection causing ACD. However, there have been several registry-based case series of associated dermatoses after COVID-19 infection or vaccination. <u> Objective: </u> This study aimed to describe patient-reported associations between COVID-19 infection or vaccination and onset of ACD...

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<u> <i/> </u> Cheilitis, or inflammation of the lips, is a common reason for dermatologic consultation. The inflammation can include the vermillion lip, vermillion border, and surrounding skin, and can present with an acute or chronic course. There are many etiologies, including irritant and allergic contact dermatitis, atopic cheilitis, actinic cheilitis, infectious etiologies, nutritional deficiencies, drug-induced cheilitis, and rare etiologies, including granulomatous cheilitis, cheilitis glandularis, plasma cell cheilitis, lupus cheilitis, and exfoliative cheilitis...

<u> Background: </u> Increasing trends of oxidized linalool contact allergy have been reported. However, the impact of reactivity and dose in eliciting allergic contact dermatitis caused by linalool hydroperoxides is insufficiently investigated. <u> Objectives: </u> To perform repeated open application tests (ROATs) using the real-world concentrations of linalool hydroperoxides in patients and control participants. <u> Materials and Methods: </u> Patients who previously had a positive (patients) and a negative (controls) patch test reaction to linalool hydroperoxides 1...

<u> <i/> </u> The rising incidence of allergic contact dermatitis (ACD) after cyanoacrylate adhesive use necessitates a comprehensive understanding of its clinical presentations, risk factors, and management. In this systematic review, we conducted an exhaustive search following PRISMA guidelines within Medline and PubMed databases to identify studies reporting cases of ACD resulting from cyanoacrylate adhesive application in wound closure. A total of 47 studies, covering 193 ACD cases, were included in our analysis...

<u> Background: </u> Doubtful patch test reactions generally do not meet criterion for positivity in patch testing. However, the North American Contact Dermatitis Group (NACDG) allows for doubtful reactions to be coded with a final determination of "allergic/positive" based on the temporal pattern, appearance, known characteristics of the allergen, and/or other supportive patch test reactions. <u> Objectives: </u> To analyze NACDG data from the 2019-2020 patch test cycle to identify patterns in the interpretation and relevance of doubtful reactions...

<u> Background: </u> Allergic contact dermatitis (ACD) is a common condition within the pediatric population. Patch testing is an important way to identify relevant allergens. <u> Objective: </u> To provide an update of the common contact allergens seen in children based on patch testing data at our institution from 2016 to 2020. <u> Methods: </u> We performed a retrospective analysis of patch test data from children aged 1-18 years from 2016 to 2020 at Mayo Clinic. Reaction rates were compared to the rates reported by the Pediatric Contact Dermatitis Registry (PCDR)...

<u>Background:</u> Supplemental patch testing is an adjunct to standard patch test screening series. <u>Objective:</u> To determine the demographics, characteristics, frequency, relevance, and interpretation of patch test reactions for supplemental patch testing. <u>Methods:</u> Retrospective study of patients tested 2017-2020 with North American Contact Dermatitis Group (NACDG) and supplemental screening series (Supplemental Series A [SSA], Supplemental Series B [SSB]). Demographics, characteristics, reaction strengths, relevance, and final interpretation were recorded...

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<u/> <u> Background: </u> Although most patients do not develop hypersensitivity reactions to metals in implanted devices, when they do occur, significant morbidity can result. Titanium-based systems are often considered as an alternative option in metal-allergic patients; however, there are few studies published on titanium allergy and allergic reactions to titanium in implants may be overlooked in clinical practice. <u> Methods: </u> Our aim was to further characterize a single institution's experience with titanium patch testing and evaluation of titanium allergy...

<u/> Exogenous allergens, found in cosmetic products, jewelry items, antiseptics and antibacterials, plants, and solvents, can cause clinical allergic contact dermatitis (ACD). To help identify and discern which allergen is causing ACD, clinicians use patch tests, but they can yield false-negative results at times. Examining potential reasoning for false negatives is particularly helpful when a patient's history and physical examination strongly suggest ACD, and the patch test is negative. A strong history and physical presentation suggestive of ACD warrants additional patch testing or other methods to verify a false-negative patch test result...

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<u> Background: </u> Chemotherapeutic drugs can lead to a wide spectrum of cutaneous findings, ranging from nonimmune toxic reactions to severe immune-mediated hypersensitivity reactions. The aim of this study was to evaluate the clinical, histopathological features, and prognosis of toxic skin reactions to chemotherapeutic drugs and to compare them with characteristics of immune-mediated reactions in children with malignancies. <u> Methods: </u> The medical records of all children with cancer who experienced skin reactions after chemotherapy administration and diagnosed as a toxic skin reaction between 2010 and 2022 were retrospectively analyzed...

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<u/> <u> Background: </u> The prevalence of atopic dermatitis (AD) is high among children, with development of AD occurring during early childhood in most affected children and some having a chronic disease course. Risk factors for AD in this group remain undefined. <u> Objectives: </u> We analyzed the medical records of children with AD under 5 years of age. We summarized characteristics of the natural course of AD in these children and explored relevant risk factors of AD in infancy and early childhood...

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<u> Background: </u> Allergic contact dermatitis is frequently caused by metals, including multiple metals simultaneously. <u> Objectives: </u> To assess characteristics and associations of positive and clinically relevant patch test (PT) reactions with solitary and concurrent metal sensitization. <u> Methods: </u> A retrospective analysis of PT results for nickel, cobalt, and/or chromium from the North American Contact Dermatitis Group between 2001 and 2018 ( n  = 43,522)...

<u> Background: </u> Botanicals are increasingly incorporated into skincare products. Although allergic contact dermatitis due to botanicals is recognized, data describing the prevalence of positive patch tests to botanicals are sparse. <u> Objective: </u> To report the Mayo Clinic experience of patch testing to selected botanical products in the standard, extended standard, fragrance, and plant series. <u> Methods: </u> IRB-approved retrospective study of the Mayo Clinic experience with patch testing to botanicals from 1997 to 2017...

No abstract text is available yet for this article.

No abstract text is available yet for this article.