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Pyoderma Flashcards

1
Q

What are the 4 potent toxins/enzymes produced by Staph pseudintermedius?

A
  1. Beta-lactamases
  2. Protein A
  3. Proteases
  4. Slime
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2
Q

There is an increase adherence of Staph pseudintermedius to keratinocytes in ____ animals.

A

There is an increase adherence of Staph pseudintermedius to keratinocytes in ATOPIC animals.

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3
Q

What is the most common underlying cause of pyoderma?

A

Atopy

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4
Q

What are the 5 primary factors of pyoderma?

A
  1. Allergies
  2. Ectoparasites
  3. Cornification disorder
  4. Endocrinopathy
  5. Immunodeficiency
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5
Q

What is the second most common underlying cause of pyoderma in the dog?

A

Hypothyroidism

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6
Q

What is the most common cause for epidermal collarettes?

A

Pyoderma

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7
Q

What is patchy hair loss an indication of?

A

Folliculitis

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8
Q

What are the differential diagnoses for pustules?

A
  1. Pyoderma
  2. Autoimmune diseases
  3. Eosinophilic pustulosis
  4. Pyogranulomatous dermatitis
  5. Dermatophytosis
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9
Q

What is the most common cause for pustules?

A

Pyoderma

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10
Q

There are 9 indications to run a bacterial culture. Name 5.

A
  1. Recurring infection
  2. History of extensive antibiotic tx
  3. Failure to respond to standard-of-care
  4. Unexpected cytology (rods)
  5. Less than 50% resolution within 2 weeks of therapy
  6. Emergence of new lesions after 2 weeks of therapy
  7. Residual lesions after 6 weeks of therapy
  8. Intracellular rod-shaped bacteri
  9. Prior history of MDR infection
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11
Q

What are the 2 topical antimicrobials used for focal pyodermal lesions?

A
  1. Benzoyl peroxide

2. Mupirocin

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12
Q

Is ultrasonic bathing bactericidal or bacteriostatic?

A

Bactericidal

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13
Q

Which of the following would be the antimicrobial of choice for treating pyoderma: bactericidal drug or bacteriostatic drug?

A

Bactericidal drug

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14
Q

What are the 4 effective antibiotics for treating pyoderma?

A
  1. Fluoroquinolones
  2. Potentiated amoxicillin
  3. Synthetic penicillins
  4. Cephalosporins
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15
Q

In treating pyoderma, how often should cephalexin be administered?

A

Orally 2x daily

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16
Q

In treating pyoderma, how often should cefpodoxime be administered?

A

Orally 1x daily

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17
Q

In treating pyoderma, how oftern should cefovecin be administered?

A

SQ every 14 days

18
Q

How would you classify a surface pyoderma?

A

Epidermis remains intact

19
Q

How would you classify a superficial pyoderma?

A

Epidermis and/or hair follicles are involved

20
Q

How would you classify a deep pyoderma?

A

Extension of infection into the dermis

21
Q

How would you classify a cellulitis pyoderma?

A

Invasion of fascial planes and subcutis

22
Q

What is the medical phrase for a “hot spot”?

A

Acute moist dermatitis

23
Q

Is acute moist dermatitis pruritic?

A

Yes, focally pruritic

24
Q

What is “puppy pyoderma”?

25
Is impetigo pruritic?
No, absent to mild pruritus
26
What are 3 predisposing factors to impetigo?
1. Husbandry 2. Parasitism 3. Nutritional factors
27
Describe the lesions commonly seen with impetigo.
Subcorneal pustular lesions, typically on the belly
28
What is generally the agent causing impetigo?
Staph pseudintermedius
29
How would you approach treatment of impetigo?
1. May resolve spontaneously 2. Topicals (BPO shampoo for 3-4 days) 3. Systemics (7-10 days)
30
What is skin fold dermatitis?
Intertrigo
31
Which 3 breeds are predisposed to intertrigo?
1. American cocker spaniel 2. English bulldog 3. Chinese sar pei
32
What is folliculitis?
Inflammation of the hair follicle
33
What are the 3 most common causes of folliculitis?
1. Demodex 2. Dermatophytes 3. Bacterial
34
What is the most common bacterial cause of folliculitis?
Staph pseudintermedius
35
In which breeds in folliculitis most commonly seen?
Short-haired dog breeds: 1. Doberman pinscher 2. English bulldog 3. Dalmation
36
Follicular inflammation results in a shift of follicles into which state of hair growth?
Telogen
37
What are 2 treatment options for folliculitis?
1. Topical shampoo (3-7 x). BPO or mupirocin for focal lesions. 2. Systemic antimicrobials (30 days)
38
When in doubt, how long should you treat folliculitis?
30 days
39
What condition leads to cicatricial alopecia?
Furunculosis
40
What is the KEY lesion to furunculosis?
Draining tracts
41
What would you call draining tracts with bloody, sanguineous discharge?
Furunculosis

Small Animal Internal Medicine (36 decks)

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