Background:
Occupational dermatoses are common, especially contact dermatitis.
Epidemiological studies on these dermatoses are scarce in Brazil and they
are necessary as part of the public policy to protect workers' health.
Objectives:
To identify sociodemographic and clinical profile of patients with
occupational contact dermatitis seen between 2000 and 2014 at an
occupational dermatology service.
Methods:
It is a cross-sectional and retrospective study, based on information
obtained from the service's database.
Results:
Of 560 patients with conclusive patch test, 289 (46.9%) presented
occupational dermatoses and 213 occupational contact dermatitis with
predominance of the allergic type in relation to the irritative type (149:64
respectively). The odds of occupational dermatoses were higher among men and
lower among patients aged 50 years or older and with higher level of
education. Regarding the possibility of presenting occupational allergic
contact dermatitis, only the gender variable was statistically significant.
The professions most seen were cleaners, construction workers, painters,
mechanics/metallurgists and cooks. The commonest allergens were nickel
sulfate, potassium dichromate, cobalt chloride, carba-mix and
formaldehyde.
Study limitations:
The main limitations of this study are the fact that it was carried out in a
tertiary service of occupational dermatoses and the lack of access to some
allergens outside the patch test baseline series.
Conclusions:
It was possible to identify the sociodemographic and clinical profile of
patients with suspected occupational contact dermatitis seen at the Service,
beyond the professional groups and allergens related to a high risk of
occupational contact dermatitis in this population.
Este artículo debe citarse como: Pautt-Lara E, Cala-Castro L, Harris O, Villarinho AL. Dermatitis atópica de inicio tardío con patrón numular. Rev Alerg
AbstractBackground: Adults with atopic dermatitis have had a persistent form in childhood or with an onset after the age of eighteen years. Late-onset atopic dermatitis may present with clinical heterogeneity and it often lacks the classic pattern of flexural dermatitis. Clinical case: A 26-year-old man with allergic rhinitis, with late-onset eczema, and an atypical nummular pattern on his trunk and limbs. The skin biopsy showed eczema-like lesions which, together with the patient's personal history and laboratory abnormalities, allowed the diagnosis of the adult's late-onset atopic dermatitis. Treatment with methotrexate was started and there was no response, which is why phototherapy was prescribed due to the dependence on systemic corticosteroids. Conclusion: Atypical presentations of atopic dermatitis in adults represent a clinical challenge. A personal history of atopy, sensitivity to aeroallergens, eosinophilia, and a cutaneous biopsy are essential to establish the diagnosis.
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