Lecture 8 Flashcards
Most common dermatophyte species in dogs/cats
M. Canis
M. Gypseum
T. Mentagrophytes
M. Persicolor
M. Canis reservoir
Cats
M. Gypseum reservoir
Soil
T. Mentagrophytes reservoir
Rodents, rabbits, pocket pets
Predisposing factors of dermatophytes
Lack of grooming Microtrauma Excessive hydration/ maceration Warm temp/ humidity Lack of sun exposure Strong cell mediated immunity
Most common breeds
White persians, himalayans
Terriers
Young animals
Cutaneous signs
Very variable *always a dx in cat Pruritus Erythema/ alopecia Miliary dermatitis Dermal nodules/ plaques Muzzle and feet most affected
DDX for dermatophytosis
Parasitic dz
Allergies
Pemphigus folliaceous
Keratinization defects
Diagnosis of dermatophytosis
Woods lamp
Trichogram eval
Culture with microscopic examination
Drawback of woods lamp
Non specific- lots of things can make it light up. But its a good screening test
What is the mackenzie technique
Useful for feline asymptomatic carriers
What is the microscopic exam useful for
Macroconidia identification
Essential for definitive diagnosis and to identify the source
Principles of treatment
Elimination of infection of host
Prevent dissemination of infective spores
Remove infective spores from environment
Therapy options
Systemic
Topical
Environmental
*treat all animals in contact
Topical therapy
Keto
Miconazole
Chlorohex
Lymdip
Clip hair- controversial
Mousee- climbazole
