Entodermoscopy to Diagnose Sarcoptic Mange: Visualising the Mite–Gallery Unit

Background Diagnosing sarcoptic mange in dogs can be challenging because the clinical signs overlap with those of other pruritic conditions. Entodermoscopy has emerged as a promising technique for the rapid confirmation of suspected scabies mite infestation. Objective To describe the dermoscopic features of sarcoptic mange in a dog. Animals A dog with sarcoptic mange was examined via dermoscopy after skin scraping confirmation. Results Distinctive dermoscopic features included: the mite–gallery unit (MGU) and specific mite structures, such as characteristic ‘Δ’‐shaped gnathosomes, eggs and burrows. Stercoraceous bullets, wake signs and grey‐edged line signs also were observed. Polarised and non‐polarised light exhibited distinct diagnostic capabilities. Digitally enhanced dermoscopy provided additional details. Conclusions and Clinical Relevance The MGU describes the anatomical and functional aspects of scabies mites as epidermal parasites and qualifies dermoscopy as a non‐invasive diagnostic tool.