Image Quiz: Dermatology—Patchy alopecia in a Chihuahua


Image Quiz: Dermatology—Patchy alopecia in a Chihuahua

Dec 06, 2010

This Chihuahua puppy has patchy areas of nonpruritic alopecia on its face and trunk.

Results of cytologic examination of skin scrapings for mites were negative, but a trichogram demonstrated fungal infection of several hair shafts.

Gross and cytologic morphology of the dermatophyte culture are shown below.

What is your diagnosis?

a) Microsporum gypseum infection

b) Trichophyton mentagrophytes infection

c) Microsporum nanum infection

d) Microsporum canis infection

More Image Quizzes

Image quiz: Persistent evidence of parasites on a fecal flotation test

This beagle mix has been treated multiple times for similar findings. Can you figure out what’s going on?

Image Quiz: Can this dog's teeth be saved?

Test your skills at assessing troubled teeth with this quick veterinary dentistry quiz.

Equine Image Quiz: A large, ulcerated abdominal lesion

The itchy, growing wound also contains small, gritty masses. What is the most likely diagnosis?