A 4-year-old neutered male Lakeland terrier was presented for evaluation of allergies and onset of new crusting skin lesions. The face, dorsum, limbs and paws were diffusely covered in crusts and adherent scaling. The dog was mildly to moderately pruritic. A single deep skin scraping was performed on the dorsal aspect of the right antebrachium, which showed the presence of Sarcoptes scabiei. Cytologic evidence for superficial pyoderma and otitis externa was also documented. The dog was treated with a single dose of fluralaner and appropriate antimicrobial therapy. One month after treatment, the dog had no Sarcoptes scabiei mites or eggs on skin scraping. Three months after presentation the dog had no recurrence of clinical signs. To the authors’ knowledge, this is the first reported case of crusted sarcoptic mange, or Norwegian-like scabies, treated with a single dose of fluralaner.
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