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Mite in keratin layer
Antemortem diagnosis is made by preparing skin scrapings with IO% KOH and identifying the mites microscopically (as illustrated in the previous two images) or by examining the fur with a magnifying glass. Trixacaris caviae may be identified postmortem in the keratin layer of sections of the skin. Pelts may be placed on a dark background and examined with a dissecting microscope for fur mite migration.