Dermatophytosis

What skin layer do dermatophytes infect?

Arthroconidia growing on the outside of a hair shaft are called _________

Which part of a ringworm lesion contains the actively growing hyphae?

• A.

  Middle

• B.

  4-5mm from the periphery

• C.

  Periphery

• D.

  The entire lesion

Proteolytic enzymes are responsible for ringworm lesions?

• A.

  True

• B.

  False

It is Sunday afternoon, you are relaxing at home when you suddenly get a craving for egg nog. Guess its time to head up to Wal-mart. While there you see a family giving away "AKC registered" Manx kittens that "have papers and everything!". You decide to go have a look at them. The family selling the kittens seem very nervous, constantly scratching themselves. Upon closer examination you notice they are all covered in red circular lesions. You inquire about this and are told that "We just developed these. But its not from the cats, they look totally fine. Plus, they are part bunny!" You'd probably be fine taking one home, I mean, they are lesion free.

• A.

  Run far, far away! Ringworm can be subclinical in cats, you are gonna wake up itchy. Plus, what do Crabbits eat?

• B.

  If they are lesion free, they are ringworm free. Plus, they are part bunny! Cuuuuute!

Microsporum nanum does not infect the hair shaft of pigs?

• A.

  True

• B.

  False

You get a call that you need to come to a pig farm because all of the pigs are very itchy and have large patches of missing hair on their bodies. What are they likely infected with?

• A.

  Microsporum nanum

• B.

  Microsporum canis

• C.

  Trichophyton mentagrophytes

• D.

  Trichopyton verrucosum

All M. canis lesions will "glow" under a Wood's lamp

• A.

  True

• B.

  False

This culture is 7 days old. It is likely a dermatophyte.

• A.

  True

• B.

  False

Trichophyton mentagrophytes causes a more severe reaction in what animal?

• A.

  Horses

• B.

  Dogs

• C.

  Cats