Facial Dermatoses

Question 1

What diseases might impact the nasal planum

Answer 1

DLE
MCP
PF

Question 2

Why should you not biopsy an ulcer

Answer 2

because there is no epidermis

Question 3

What diseases have acantholytic keratinocytes

Answer 3

1) PF
2) Pyoderma
3) Dermatophytosis

Question 4

How might vitiligo not be a cosmetic disease

Answer 4

Sundamage and can lead to SCC

Question 5

What are good sunscreens for dogs

Answer 5

Sunfree (Verbac)

Question 6

non inflammatory melanocyte destruction
no other structural change

well demarcated

Answer 6

Vitiligo

Question 7

What is treatment for Vitiligo

Answer 7

No treatment- just cosmetic
Requires sunscreen

Question 8

What breeds get idiopathic nasal hypopigmentation

Answer 8

Retrievers nad Huskies

Question 9

Hypopigmentation of the nose that happens in Retrievers and Huskies

Answer 9

Idiopathic nasal hypopigmentation

Question 10

How do you treat idiopathic nasal hypopigmentation

Answer 10

No treatment

Sunscreen not required

Question 11

What does epitheliotropic cutaneous T cell lymphoma look like

Answer 11

Depigmentation
Heavy scale
Crust
Pruritus
Completely flat nasal planum (no architecture)

Question 12

What kind of dogs are predisposed to epitheliotropic cutaneous T cell lymphoma

Answer 12

older dogs

Question 13

What is the prognosis of epitheliotropic cutaneous T cell lymphoma

Answer 13

not good, very poor

Question 14

How do you diagnose epitheliotropic cutaneous T cell lymphoma

Answer 14

Biopsy

Question 15

What breeds get VKH like syndrome

Answer 15

Akita - other breeds possible

Question 16

How do dogs with VKH like syndrome typically present

Answer 16

Severe bilateral uveitis- usually first
Blindness
Depigmentation
Crusting/ulceration

Question 17

For VKH like syndrome, what is paramount

Answer 17

treating eyes is paramount and emergent

Question 18

What kinds of dogs get idiopathic nasal hyperkeratosis

Answer 18

Older dogs
Cockers
Brachycephalics

Question 19

How do you treat idiopathic nasal hyperkeratosis

Answer 19

Treat just like footpad hyperkeratosis
-Humectants, keratolytics

Question 20

Should you use vaseline for derm issues

Answer 20

Never

Question 21

What could idiopathic nasal hyperkeratosis lead to

Answer 21

pyoderma

Question 22

What might cause unilateral nasal hyperkeratosis

Answer 22

Xeromycteria
-Parasympathetic innervation to lateral nasal gland (otitis media)

Question 23

parasympathetic de-innervation to lateral nasal gland leads to

Answer 23

Xeromycteria

Question 24

What might cause Xeromycteria

Answer 24

Otitis media

Question 25

What might otitis media cause

Answer 25

1) Xeromycteria 2) Facial nerve paralysis 3) Respiratory signs

Question 26

How do you treat Xeromycteria induced nasal hyperkeratosis

Answer 26

same as other hyperkeratosis - Humectants, keratolytics

Question 27

With multifocal to generalized facial dermatoses you should always investigate

Answer 27

Bacteria, yeast, Demodex may not be the primary cause

Question 28

What should you do for yeast/bacterial pyoderma

Answer 28

Cytology

Question 29

What should you do for demodex

Answer 29

deep skin scrape

Question 30

What should you do for dermatophytosis

Answer 30

Fungal culture / PCR

Question 31

What should you do if cytology is negative

Answer 31

Consider biopsy 1) DLE 2) PF 3) Zinc responsive dermatosis 4) Vasculopathy 5) Allergic dermatitis 6) Sterile pyogranulomatous dermatitis (NO infectious etiologies)

Question 32

What onset does eosinophilic folliculitis and furunculosis have **

Answer 32

Acute onset

Question 33

Where does eosinophilic folliculitis and furunculosis typically occur

Answer 33

Snout / Nasal planum junction focal and severe nodules and ulcers

Question 34

How do you cure eosinophilic folliculitis and furunculosis

Answer 34

Prednisone - curable 2mg.kg q24h for one week, then taper until resolition quick response

Question 35

What might cause eosinophilic folliculitis and furunculosis

Answer 35

suspected arthropod hypersensitivity

Question 36

What will you see on impression smear cytology with eosinophilic folliculitis and furunculosis

Answer 36

Eosinophils (and sometimes bacteria) Mast cells can also be there