Lecture: Feline Dermatoses

Question 1

Special feline syndromes

Answer 1

1. Miliary dermatitis
2. Eosinophilic granuloma complex
3. Mosquito hypersensitivity
4. Symmetric alopecia
5. Contagious
   
   • Dermatophyte
   • Sporothix

Question 2

Miliary dermatitis syndrome

(Scabby cat disease)

Answer 2

• reaction pattern (symptom)
• papular crusting lesions
• dorsal neck and back and rump

Question 3

Miliary dermatitis

Look for underlying cause

Answer 3

• history suggestive of allergies
• skin scrapings
• fungal culture
• response to flea control

Question 4

Eosinophilic granuloma complex

Clinical manifestations

Answer 4

• Indolent Ulcer
• Eosinophilic Plaque
• Collagenolytic Granuloma
  
  • three types

Question 5

Eosinophilic plaques are usually…..

Answer 5

Pruritic

Question 6

Indolent ulcer

Answer 6

• Inflammatory ulcer usually on upper lip
• Unilateral/bilateral
• Potential concurrent Nodular Pharyngeal Granuloma
• Associated with underlying allergy
• rarely progresses to
  
  • squamous cell carcinoma

Question 7

Indolent ulcer

DX

TX

Answer 7

• DX
  
  • Clinical signs and history
• TX
  
  • Look for underlying disease
  • antibiotics
  • glucocorticoids
  • +/- cyclosporine

Question 8

Eosinophilic plaque

Clinical Features

Answer 8

• Well circumscribed red yellow edematous plaque
• intensely pruritic
• often groin or medial thighs
• associated with allergic dz

Question 9

Eosinophilic plaque

DX

TX

Answer 9

• DX
  
  • clinical signs
  • histopathology
• TX
  
  • Control underlying allergy

Question 10

Three forms of Collagenolytic granuloma

Answer 10

1. Linear granuloma
2. Nodular pharyngeal granuloma
3. Chin form

Question 11

Linear granuloma

Answer 11

• linear, raised, on caudal aspect of hind legs
• Variable pruritus

Question 12

Nodular pharyngeal granuloma

Answer 12

• Firm, pink, yellow lesions
• Usually associated with indolent ulcer

Question 13

Collagenolytic granuloma

DX

TX

Answer 13

• DX
  
  • History
  • CS
  • histopath
• TX
  
  • Glucocorticoids
  • Look for underlying allergy
    
    • flea
    • environmental
    • contact

Question 14

Feline mosquito hypersensitivity

Answer 14

• Seasonal, non pruritic dermatitis
• outdoor cats
• mosquitoes and culicoides

Question 15

Feline mosquito hypersensitivity

CS

Answer 15

• papular/ulcerative, nodular lesions
  
  • nose
  • Pinnae
  • Paws

Question 16

Footpad dermatitis think of

Answer 16

Immune mediated disease

Question 17

Feline mosquito hypersensitivity

DX

TX

Answer 17

• Diagnosis
  
  • history
  • Clinical signs
  • histopathology
• Treatment
  
  • Glucocorticoids
  • Avoid Mosquitos

Question 18

Feline alopeia

Answer 18

• Self-induced
  
  • pruritus
  • behavoiral
• Endocrine

Question 19

Trichogram

Answer 19

• helpful in self-induced alopecia
• pluck a hair and look under a microscope
  
  • tapered means cat hasn’t been licking
  • fractured means cat has destroyed the hair

Question 20

Other causes of generalized alopecia

Answer 20

• Dermatophytosis
• Demodicosis
• Autoimmune Disease
• Telogen Defulxion
• Congenital or inherited Alopecia
• Follicular defect
• Paraneoplastic Alopecia (shiny bald not itchy abdomen :-()

Question 21

Food allergy think

Answer 21

facial lesions

not related to change in diet

Question 22

Feline Atopy

Answer 22

• Generalized Miliary Dermatitis
• Eosinophilic Dermatitis with or without plaque lesions
• Symmetrical hairloss from self-trauma
• Diagnosis by exclusion
• Treat with ASIT
  
  • allergen specific immunotherapy

Question 23

Therapy of feline dermatoses

Answer 23

• short term
• symptomatic
  
  • depomedrol
    
    • cats are more resistant to adrenal suppression
• oral glucocorticoids
  
  • prednisolone
  • methyprednisolone
  • Dexamethasone
• Cyclosporine (maybe for a diabetic)