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Small Animal Internal Medicine > Pyoderma > Flashcards

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”?

A

Impetigo

25
Q

Is impetigo pruritic?

A

No, absent to mild pruritus

26
Q

What are 3 predisposing factors to impetigo?

A
  1. Husbandry
  2. Parasitism
  3. Nutritional factors
27
Q

Describe the lesions commonly seen with impetigo.

A

Subcorneal pustular lesions, typically on the belly

28
Q

What is generally the agent causing impetigo?

A

Staph pseudintermedius

29
Q

How would you approach treatment of impetigo?

A
  1. May resolve spontaneously
  2. Topicals (BPO shampoo for 3-4 days)
  3. Systemics (7-10 days)
30
Q

What is skin fold dermatitis?

A

Intertrigo

31
Q

Which 3 breeds are predisposed to intertrigo?

A
  1. American cocker spaniel
  2. English bulldog
  3. Chinese sar pei
32
Q

What is folliculitis?

A

Inflammation of the hair follicle

33
Q

What are the 3 most common causes of folliculitis?

A
  1. Demodex
  2. Dermatophytes
  3. Bacterial
34
Q

What is the most common bacterial cause of folliculitis?

A

Staph pseudintermedius

35
Q

In which breeds in folliculitis most commonly seen?

A

Short-haired dog breeds:

  1. Doberman pinscher
  2. English bulldog
  3. Dalmation
36
Q

Follicular inflammation results in a shift of follicles into which state of hair growth?

A

Telogen

37
Q

What are 2 treatment options for folliculitis?

A
  1. Topical shampoo (3-7 x). BPO or mupirocin for focal lesions.
  2. Systemic antimicrobials (30 days)
38
Q

When in doubt, how long should you treat folliculitis?

A

30 days

39
Q

What condition leads to cicatricial alopecia?

A

Furunculosis

40
Q

What is the KEY lesion to furunculosis?

A

Draining tracts

41
Q

What would you call draining tracts with bloody, sanguineous discharge?

A

Furunculosis

Small Animal Internal Medicine (36 decks)

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