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Entodermoscopy to Diagnose Sarcoptic Mange: Visualising the Mite-Gallery Unit
1Tierklinik Perchtoldsdorf Ost, Tierärzte IVC Evidensia AT GmbH, Perchtoldsdorf, Austria.
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.
