VPN Plus+ ExclusiveDermatophytosis: Wood You Be Able to Spot This Ringer?June 3, 2025In this session: Brittany Lancellotti, DVM, DACVD (Dermatology), presents images and case discussions to help audience members recognize common disease patterns, particularly in susceptible populations. She also addresses point of care diagnostics that can be easily performed in the clinic that can speed successful treatment. Additionally, a three-pronged approach to eliminating this frustrating fungi and the communication tools needed to empower clients to implement the plan are reviewed.
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The Wood's lamp versus M. CanisJanuary 18, 2023There were only a few percentages we were told to "memorize for boards" in veterinary school, a dozen years ago now. These included odds of malignancy in dog/cat mammary masses (50 percent/90 percent); canine splenic mass diagnoses (33 percent hematoma/hemangioma/ hemangiosarcoma); failure rates of TPLO versus TPP versus. lateral band in canine cruciate disease (now debunked); and, in dermatology, the sensitivity of the Wood's lamp in diagnosing dermatophytosis: less than 50 percent. Where did "50 percent" come from, and why has it been lodged so firmly in our heads? So firmly that I recently ran across this same number in the crisp 2022 edition of a small animal textbook. That number is wrong, and my veterinary friends, colleagues, students still quote it. It is also possible the first percentages quoted here need updating—they probably do (See: "When in doubt cut it out! But by how much?" by Brennen McKenzie, MA, MSc, VMD, cVMA on VPN Plus+). A closer look at M. canis Dermatophytosis in small animals is generally caused by one of three fungal organisms: Microsporum canis, M. gypseum, and Trichophyton mentagrophytes. M. canis is the only one of these that produces pteridine …
