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Acral Exogenous Cutaneous Pigmentation Caused by Contact with a Darkling Beetle (Coleoptera: Tenebrionidae) in a Young Patient in the state of Amazonas.
Rev Soc Bras Med Trop
January 2025
Fundação de Medicina Tropical Heitor Vieira Dourado, Departamento de Dermatologia, Manaus, AM, Brasil.
Pediatric acral pigmentation related to a beetle contact.
Trop Doct
January 2025
Doctor, Department of Pediatric Emergency Medicine, Saban Pediatric Medical Center, Soroka University Medical Center, Faculty of Health Science, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
We report a case of the appearance of dark pigmented skin on the plantar surface of the foot and toes in a young child, likely caused by the beetle Few such documented cases occur in the literature and none reported from our region. Identifying the cause is important to avoid unnecessary investigations and treatment, and to provide reassurance to patients.
View Article and Find Full Text PDFDermoscopic Features of Diaper Dermatoses in Children: A Descriptive Pilot Study.
Indian Dermatol Online J
November 2024
Department of Dermatology, Venereology, and Leprosy, Gandhi Medical College, Secundarabad, Telangana, India.
Background: Diaper dermatoses broadly refer to skin disorders that occur in the diaper area. Dermoscopy is a non-invasive diagnostic tool that magnifies subsurface structures of the skin that are invisible to the unaided eye.
Aim: To identify and describe the dermoscopic features of dermatoses in the diaper area.
The Prevalence of Dermoscopy Use Among Dermatology Residents in Riyadh, Saudi Arabia: Cross-Sectional Study.
JMIR Dermatol
January 2025
Department of Dermatology, College of Medicine, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia.
Background: Dermoscopy is a noninvasive technology used to examine the skin's invisible microstructures in dermatological practice and is gaining prominence as a crucial tool. Dermoscopy is an evidence-based practice used to enhance the early detection of skin malignancies and to help distinguish between various skin conditions, including pigmented and nonpigmented skin malignancies. Currently, the vast majority of global guidelines for skin cancer recommend dermoscopy as a critical component.
View Article and Find Full Text PDFThe Melanocyte and Nerve Fiber Cross-Talk, Facilitated Also by Semaphorin-4A, Enhances UV-B-Induced Melanogenesis.
Pigment Cell Melanoma Res
January 2025
QIMA Life Sciences, QIMA Monasterium GmbH, Münster, Germany.
Epidermal melanocytes form synaptic-like contacts with cutaneous nerve fibers, but the functional outcome of these connections remains elusive. In this pilot study we used our fully humanized re-innervated skin organ culture model to investigate melanocyte-nerve fiber interactions in UV-B-induced melanogenesis. UV-B-irradiation significantly enhanced melanin content and tyrosinase activity in re-innervated skin compared to non-innervated controls, indicating that neuronal presence is essential for exacerbating pigmentation upon UV-B irradiation in long-term culture.
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