Parasitic Skin Diseases

Question 1

Classic Presentation of Scabies

Answer 1

• pinnal margins (with pinnal-pedal reflex)
• lateral elbows
• ventral thorax
• ventral abdomen
• caudal hocks

primarily erythema, papules, and scales

Question 2

Is scabies pruritic?

Answer 2

YES very much so

Question 3

What percent of skin scrapings will be positive for scabies?

Answer 3

20-50%

they are very difficult to find

Question 4

When scraping for scabies, is it superficial or deep?

Answer 4

superficial

male mites live on surface; females lay ova in epidermis

Question 5

Is scabies contagious?

Answer 5

YES!!!

to dogs and people; rarely seen in cats

Question 6

How to treat scabies?

Answer 6

Isoxazolines

Bravecto/Nexgard/Simparica

treat environment and other animals too

Question 7

can scabies be cured?

Answer 7

YES

one of the few derm diseases that can be cured lol

Question 8

Is it easy to find demodex on a skin scrape?

Answer 8

yes

they are present in normal fauna but are rare, so if you find one treat the animal as positive

Question 9

Notodetric Mange

Answer 9

cat scabies

Question 10

Demodex clinical signs in dogs

Answer 10

alopecia, erythema, crusts, ulcers; can be generalized or local

Question 11

When scraping for demodex, is it superficial or deep?

Answer 11

deep

demodex live in the hair follicles (dermis)

species injai also live in sebaceous glands

Question 12

How to treat demodex?

Answer 12

isoxazolines

no need to treat environment

Question 13

is treatment for demodex curative?

Answer 13

no, we are only controlling

relapse is common especially in intact females

Question 14

Demodex clinical signs in cats

Answer 14

alopecia, erythema, CERUMINOUS OTITIS

Question 15

Is demodex pruritic in dogs? cats?

Answer 15

dogs = no
cats = yes/no

Question 16

is demodex contagious?

Answer 16

only gatoi in cats and to other cats

Question 17

in what patients should isoxazolines be used with caution or avoided entirely?

Answer 17

neuro patients

lowers the seizure threshold

Question 18

which cat demodex is pruritic - gatoi or cati?

Answer 18

gatoi

Question 19

which feline demodex species is associated with immunosuppression?

cati or gatoi

Answer 19

cati

think FeLV/FIV

Question 20

where in the skin is chyletiella found?

Answer 20

pseudotunnels of epidermal debris (on the surface)

Question 21

species affected by chyletiella (4)

Answer 21

dogs
cats
rabbits
humans

Question 22

is chyletiella contagious?

Answer 22

oh HELLA

Question 23

is chyletiella host-specific?

Answer 23

NO

there are different species with predilections for dogs/cats/rabbits

but NOT only found on those species

Question 24

main clinical sign of chyletiella?

Answer 24

SCALES
aka Walking Dandruff!

wil lalso see symmetrical alopecia

Question 25

is chyletiella pruritic?

Answer 25

yes, especially along the dorsum

Question 26

what is miliary dermatitis

Answer 26

papules with crusts on them

Question 27

can you find chyletiella easily on skin scrapes?

Answer 27

no

best found in the papules

Question 28

how to differentiate chylietiella from scabies on skin scrape?

besides slinical signs

Answer 28

walking dandrff has angry mouth parts

Question 29

chyletiella treatment

Answer 29

Dogs and cats can have isoxazolines
Everyone can have selamection (Revolution)

treat all animals and the environment

Question 30

What happens if you put frontline on rabbits?

Answer 30

THEY WILL DIE

Question 31

is treatment duration for chyletiella based on skin scrapes?

Answer 31

no