Small Animal Dermatology Q&A 20

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The ear margin of a 3-year-old springer spaniel dog is shown. The owners report that this material accumulates on the ear margin within 2–3 days after bathing. The ear margins are matted with greasy accumulations of follicular casts adhering to the skin and to the hair. The remainder of the dog’s skin is normal. Skin scrapings are negative, and previous impression smears of the exudate revealed poorly staining ceruminous debris, with some cocci and Malassezia organisms. The dog has been treated with oral antibiotics and concurrent ketoconazole several times previously, but the condition always recurs.

Question Answer Article
What is the clinical diagnosis, and how should the dog be treated? Link to Article
Ear margin dermatoses are common in which dog breed(s), and how do lesions progress? Link to Article

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