Pediatric “pet consort dermatitis”—Allergic contact dermatitis from transfer of bronopol from a pet cat

Hamann, Dathan; Ridpath, Alyson; Faith, Esteban Fernández

doi:10.1111/pde.13572

Cited by 2 publications

(1 citation statement)

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“…Animals have been the source of the allergen in a minority of cases of CD. Forearm dermatitis occurred in a child due to the transfer of 2‐bromo‐2‐nitropropane‐1,3‐diol present in cat litter . Intermittent facial oedema due to unsuspected imidazole antifungal exposure occurred in a female whose mother's dog was being treated with anti‐dandruff shampoo .…”

Section: Discussionmentioning

confidence: 99%

Pet consort dermatitis from dog grooming products

Soriano

Buckley

2019

Contact Dermatitis

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K E Y W O R D S : allergic contact dermatitis, case report, methylisothiazolinone, pets Connubial (Consort) Dermatitis (CD) is an allergic contact dermatitis caused by inadvertent transfer of an allergen through intimate contact with a patient. We present two unique cases of CD from exposure to allergens in dog grooming products. CASE REPORTS Case 1A 36-year-old atopic female finance manager was known to be sensitized to methylisothiazolinone (MI) and methylchloroisothiazolinone (MCI) and had strictly avoided exposure to these allergens for 6 years.In recent months, she had developed a severe eczematous papular pruritic eruption lasting a week, 1 day after two visits to a friend's farmhouse: first on her forearms (Figure 1), and a few months later, on her legs. Her friend was a dog-owner, and it transpired that 'Johnson's Veterinary Anti-Tangle Conditioning Shampoo' ( Figure S1), containing MCI and MI, was being used on the dog, which the patient was in the habit of patting and stroking during visits. Following avoidance of contact with the dog, no further episodes occurred. Case 2A 39-year-old atopic female hairdresser was known to be sensitized to MI and MCI, confirmed by patch testing 4 years earlier. Control of dermatitis required ciclosporin 3 mg/kg/d and potent topical steroids. SORIANO AND BUCKLEY 187She changed employment to become a self-employed cleaner, wearing gloves to avoid exposure to MI and MCI in detergents. Severe flares of dermatitis on the hands and forearms remained frequent.Eventually, she noticed a cyclical pattern, with onset after her puppy was groomed. The products used at the pet grooming salon were not labelled to contain isothiazolinones. However, by providing MI-and MCI-free shampoo to the dog groomer, the cyclical flares settled entirely, and it was assumed that unlabelled isothiazolinones had triggered the flares, although another unlabelled allergen could not be excluded. DISCUSSIONCD has been mostly identified with cosmetics applied by an individual, who may not disclose use of the product. For example, aftershave lotion containing Evernia prunastri has induced CD in the wife of the man using it. 1 Severe infantile facial dermatitis has been reported in infants who were allergic to fragrances used in their mothers' cosmetics. 2 Recurrent eczema developed on the left arm, left side of chest, and back of a man who had regular contact with his wife's hair, frequently dyed with products containing p-phenylenediamine. 3 Animals have been the source of the allergen in a minority of cases of CD. Forearm dermatitis occurred in a child due to the transfer of 2-bromo-2-nitropropane-1,3-diol present in cat litter. 4 Intermittent facial oedema due to unsuspected imidazole antifungal exposure occurred in a female whose mother's dog was being treated with antidandruff shampoo. 5 Recurrent acute exudative dermatitis occurred on the arms and neck in a female due to recurrent thiuram exposure from ear mite preparations that she applied to her dogs. 6 MI, a preservative widely used in cosmetics an...

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Section: Discussionmentioning

confidence: 99%