Feline Dermatoses Flashcards
1
Q
Define miliary dermatitis syndrome (“scabby cat syndrome”)
A
-
not a specific dermatosis
- it is a symptom
- it is “seedy”
- it is a “reaction pattern”
- C/S:
- papular seedy eruption
- easier to feel than to see
- frequently: dorsal neck and back
- papular seedy eruption
2
Q
What are the etiologies of miliary dermatitis syndrome?
A
- Parasitic
- Allergy: flea allergy (>80%), atopy, food allergy
- I N 4
- Microbial: Dermatophytes, Bacteria
- E
3
Q
How do you diagnose miliary dermatitis?
A
- C/S: may or may not itch
- look for underlying cause:
- hx suggestive of allergies
- fungal culture to rule out curable contagious dz
- skin scrapings for parasites
- response to flea control
4
Q
How do you treat miliary dermatitis?
A
- Long term (define underlying cause)
- Short term (palliative)
- Depomedrol
- Prednisolone
5
Q
Describe Eosinophilic Granuloma Complex
A
- Includes several clinical manifestations:
- indolent ulcer
- eosinophilic plaque
- collagenolytic granuloma
- different “reaction patterns’ grouped into complex
6
Q
Describe indolent ulcers
A
- “rodent ulcer”
- inflammatory ulcer usually located on the upper lip
- unilateral/bilateral
- potential concurrent symptoms
- nodular pharyngeal granuloma
- assoc. w/ underlying allergy
- rarely will progress into SCC
7
Q
How do you diagnose an indolent ulcer?
A
- C/S and hx
- Dermatopathology (biopsy)
- r/o other conditions
- +/- eosinophils
8
Q
How do you treat indolent ulcers?
A
- long term - look for underlying dz, flea control!
- short term
- antibiotics
- glucocorticoids
- cyclosporine
- chlorambucil (resistant ulcers)
9
Q
Describe the clinical features of eosinophilic plaques
A
- well circumscribed red yellow edematous plaque
- intensely pruritic
- usually on groin or medial thighs
- assoc. w/ allergic dz
- especially flea allergy!
10
Q
How do you diagnose and treat eosinophilic plaques?
A
- Dx:
- C/S
- Histopathology: spongiotic dermatits w/ severe eosinophilic infiltrate
- Tx:
-
Control underlying allergy
- ASIT, food trial, flea control
- glucocorticoids or cyclosporine
-
Control underlying allergy
11
Q
Describe collagenolytic granulomas
A
- Three forms:
- linear granulomas
- linear, raised on caudal aspect of hind legs
- variable pruritus
- nodular pharyngeal granuloma
- firm, pink, yellow lesions
- usually assoc. w/ indolent ulcer
- chin form (“fat chin”)
- linear granulomas
12
Q
How do you diagnose and treat collagenolytic granulomas?
A
- Dx:
- hx
- c/s
- histopath
- Tx:
- glucocorticoids
- lok for underlying ALLERGY
13
Q
Describe feline mosquito hypersensitivity
A
- Seasonal, non pruritic dermatitis
- outdoor cats
- mosquitoes and Culicoides
- C/S:
- papular/ulcerative, nodular lesions
- nose
- pinnae
- paws
- papular/ulcerative, nodular lesions
14
Q
How do you diagnose and treat feline mosquito hypersensitivity?
A
- Dx:
- hx
- clinical signs
- histopathology
- Tx:
- glucocorticoids
- avoid mosquitos
15
Q
Describe feline alopecia
A
Various causes:
- self-induced
- pruritus
- behavioral
- endocrine
Dx: with trichography
