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RUSVM SAM 2 > Pruritus 5 - Cats > Flashcards

Pruritus 5 - Cats Flashcards

1
Q

How does pruritus in the cat differ from that in the dog?

A

Owner may not see pruritus

Body localization is not as distinctive 
Skin lesions are different 
— bilateral symmetrical hair looks with normal skin 
— miliary dermatitis
—eosinophilic granuloma complex
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2
Q

Two most common skin conditions in cats?

A

FLEAS

Ringworm

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3
Q

What is your DDX for self-induced feline symmetrical alopecia ?

A

Psychogenic

Pruritic
- allergy —> flea allergy, atopy, food allergy

  • ectoparasites —> notoedris, demodex, and fur mites
  • infections —> pyoderma, yeasts, dermatophytes
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4
Q

How do you diagnose psychogenic alopecia?

A

Diagnosis of rule out — eliminate all causes of pruritic dermatosis

Anxiety

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5
Q

Psychogenic alopcia is most commonly localized to what locations on the body?

A

Medial thighs
Medial forelimbs

Ventral abdomen

  • easy to reach places
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6
Q

Therapy for psychogenic alopecia?

A

Behavior modifications

Feliway

Tricyclics antidepressant

  • alprazolam
  • amitirptyline
  • clomipramine
  • fluoxetine
  • paroxetine
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7
Q

Most common cause of allergic dermatitis in cats?

A

Flea bite dermatitis

—usually caudodorsal alopecia but can involve face, limbs, and neck

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8
Q

Atopic dermatitis is usually localized where on the cat ?

A

Medial thigh
Forelimb
Ventrum
Flank

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9
Q

Food allergic dermatitis is present all year round and can be found anywhere on the body but especially on the ??

A

Face and head

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10
Q

Ectoparasites found on cats?

Where is it localized?

A

Notoedres cati —feline scabies

Pinna, face, neck > forelimb > body

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11
Q

Clinical signs of feline scabies?

A

Alopecia, wrinkled skin, papular rash and crusts

Can also have peripheral lymphadenopathy

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12
Q

Diagnosis and treatment of feline scabies?

A

Diagnosis: skin scrapes

Treatment:

  • lime sulphur dip
  • ivermectin
  • selamectin
  • imidacloprid/moxidectin (advantage multi)
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13
Q

Demodex gatoi causes what lesions? What diagnostics would you do?

A

Alopecia, crust, scaling, and pruritus

Deep skin scrape

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14
Q

Treatment for demodex gatoi?

A

Lime sulphur dip/pump spray

Elizabethan collar to prevent consuming dip

NOT usually recommended in cats —> Imidacloprid/moxidectin (advantage multi), ivermectin selamectin, doramectin

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15
Q

Clinical signs of lynxacarus radovsky?

A

AKA fur mites

“Salt and pepper”
Mites in hair shaft

Hair epilate easily
Eggs stick to hairs

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16
Q

Diagnosis and treatment of fur mites ?

A

Acetate tape test

Pyrethrin spray, lime sulphur dip, fipronil spray, ivermectin (heartworm neg), selamectin, milbemycin

17
Q

Endocrine diseases causing symmetrical alopecia in cats?

A

Hyperthyroid

  • excessive grooming
  • hair tips are not chewed off

Hyperadrenocortisim

  • symmetrical truncal alopecia
  • hair epilates easily
  • skin is very fragile/thin
18
Q

What would you suspect as a top DDX if you have symmetrical alopecia on the ventrum and legs, a shiny appearance of the skin, hair epilates easily, with concurrent anorexia, and lethargy?

A

Pancreatic neoplasia

19
Q

What is miliary dermatitis?

A 
Crusted papule 
Multifocal distraction (can be localized or generalized)

Erythema, secondary alopecia, and exhortations often seen

20
Q

Causes of miliary dermatitis?

A

Flea allergic dermatitis

Adverse food reaction 
Atopy 
Parasite 
Dermatophytes 
Autoimmune disease 
Immune-mediated dz
Neoplasia 
Viral -herpes/FIV/FeLV 
Idiopathic
21
Q

What are the 3 presentations to eosinophilic granuloma complex?

A

Indolent ulcer

Eosinophilic plaque

Collagenolytic granuloma

Atypical eosinophilic granuloma (rare)

22
Q

What are possible etiologies of eosinophilic granuloma complex?

A

Flea bite
Atopy
Food

Infectious - ectoparasites/bacteria/ virus

Chronic trauma
Genetic predisposition

23
Q

How does an indolent ulcer appear?

A

Well-circumscribed, proliferative inflammatory lesion with dish shaped ulcer centrally

Usually on upper lip, can be uni or bilateral

Non painful and non pruritic

24
Q

How does an eosinophilic plaque appear?

A

Well circumscribed, reddish-yellow, ulcerated, edematous, intensely pruritic plaque

Inguinal region, medial thigh, and ventral abdomen

Raised and flat - can be ulcerated
Associated with allergic etiology

25
Q

How does a collagenolytic granuloma/eosinophilic granuloma appear?

A

Well circumscribed, linear or raised nodular firm, yellow-pink lesions

Linear granuloma, pharyngeal granuloma, or chin form

Caudal aspect of the hindlimbs or abdomen

Non painful and non pruritic

26
Q

DDX for eosinophilic granuloma complex?

A

Neoplasia

27
Q

Papular erosion, crusting and depigmentation of the skin over bridge of the nose, and ear pinnae

Paws - hyperkeratoisis or ulceration
Lymphadenopathy

Dx?

A

Eosinophilic granuloma complex

28
Q

Treatment for eosinophilic granuloma complex?

A

Parasitic control

Medical therapy
- glucocorticoids — prednisolone
- cyclosporine A
Once resolved — taper and withdrawal therapy

29
Q

Comedowns on the chin and lower lip
Papules and pustules
Furunculosis and scaring

DDx?

A

Feline acne
—> idiopathic disorder of follicular keratinization

Demodex
Dermatophytosis
Malassezia
Eosinophilic granuloma complex

30
Q

Treatment of feline acne?

A

Treat secondary infection
- mupirocin

Clip hair and clean area with human acne preparation
- benzoyl peroxide

Refractory cases - vit A

31
Q

Nodules that open up and drain
Draining tracts with serous to purulent fluid

Dx?

A

Feline leprosy

32
Q

Causes of feline leprosy?

A

Infectious
—> nocardia, actinomyces, mycobacterium
—> dermatomycosis

Non-infectious 
—>> panniculitis 
—> collagenolytic granuloma 
—> foreign bodies 
—> neoplasia
33
Q

How do you diagnose and treat feline leprosy?

A

Full dermatological examination
Skin biopsy — histopath and culture

Treat underlying cause

RUSVM SAM 2 (44 decks)

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