USE OF DERMOSCOPY AS A NON-INVASIVE DIAGNOSTIC TECHNIQUE IN PLANTAR PIGMENTATION CAUSED BY NEZARA VIRIDULA: A CASE REPORT
Keywords:
Dermoscopy; Arthropod-induced pigmentation; Nezara viridula; Case report; Pediatrics.Abstract
Cutaneous manifestations caused by insects represent a heterogeneous group of dermatoses, most of which are inflammatory. However, certain species may induce pigmentary lesions through direct contact with the substances they secrete. These cutaneous pigmentations have been described in species belonging to the superfamily Pentatomoidea, which comprises several families, including Pentatomidae, encompassing green stink bugs such as Nezara viridula and Cydnidae, which includes burrowing bugs such as Chilocoris assmuthi and Cydnus aterrimus. These species are capable of secreting defensive volatile aldehydes that, upon contact with human skin, may lead to pigmentary changes.
In Argentina, multiple species of the family Cydnidae are native, whereas Nezara viridula is considered a naturalized species, widely distributed across different regions of the country.
In this report, we describe a case of exogenous pigmented dermatosis and provide a brief review of the literature on arthropod-induced cutaneous pigmentary lesions, highlighting the role of dermoscopy as a noninvasive diagnostic tool.
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Copyright (c) 2026 Cindy Kelian Bravo Montalvo, Maria Josefina Pavon, Margarita Larralde, Luis Angel Kong Lozano
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