Photoletter to the editor: Exogenous pigmentation after Diplopoda exposure leading to a dermatoscopic parallel ridge pattern on the plantar region

Journal of Dermatological Case Reports

Carlos Baptista Barcaui¹  Tainá Scalfoni Fracaroli²  Juan Piñeiro Maceira³ 

[1] Department of Dermatology, School of Medical Sciences, Universidade Estadual do Rio de Janeiro (UERJ) — Rio de Janeiro, RJ, Brazil.Dermatologist, Goiânia, GO, Brazil;Departments of Dermatology and Anatomic Pathology, School of Medical Sciences, Universidade Estadual do Rio de Janeiro (UERJ) — Rio de Janeiro, RJ, Brazil;

关键词: arthropods;    dermoscopy;    dermatoscopy;    melanoma;    parallel ridge;    simulation;   

DOI  :  10.3315/jdcr.2015.1209

学科分类：皮肤病学

来源: Specjalisci Dermatolodz

【 摘 要 】

The millipedes (also known as "gongolos") are arthropods characterized by a cylindrical body consisting of rings. When threatened, they release chemicals that can cause erythema and hyperpigmentation. We report the case of a patient who developed a darkened macule on the plantar region after stepping on a millipede. Dermatoscopic examination showed a parallel-ridge pattern, which is considered typical for acral melanoma. A detailed history was essential for the diagnosis, as the clinical and dermatoscopic features suggested a malignant melanocytic lesion.

【 授权许可】

Unknown