Skin and Subcutaneous Tissues Flashcards

1
Q

What bacteria would you find in pyoderma/skin infections?

A
  • coagulase positive staphylococcus
  • streptococcus
  • corynebacterium
  • arcanobacterium
  • pseudomonas
  • pasturella
  • proteus
  • E. coli
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2
Q

Which staphylococcus is the most common isolate that is associated with skin disease in dogs?

A

Staphylococcus pseudointermedius

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3
Q

What is MRSA?

A

Methicillin resistant Staphylococcus aureus

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4
Q

All staphylococcus isolates which are macrolide (erythromycin) resistant should be considered resistant to what other abx unless otherwise confirmed by D-test?

A. Rifampin
B. Penicillin
C. Clindamycin
D. Ampicillin

A

C. Clindamycin

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5
Q

Greasy pig disease is also known as…

A

Staphylococcus hyicus (exudative dermatitis)

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6
Q

Bumble foot (birds) is also known as…

A

Staphylococcus aureus

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7
Q

Botryomycosis hosts?

A

Rodents, human and horse

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8
Q

What type of pathogenesis does botryomycosis cause?

A

Chronic pyogranulomatous inflammation

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9
Q

What is the bacterial isolate of botryomycosis?

A

Staphylococcus aureus

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10
Q

Types of bacterial skin infections in cats?

A
  • mycobacterial infections (feline leprosy)
  • Yersinia pestis (lymph node abscess)
  • Pasteurella spp. (cat bite abscess)
  • sterile abscess
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11
Q

What are some AEROBIC bacteria that are involved in wound infections, draining tracts and abscesses?

A
  • staphylococcus
  • streptococcus
  • Corynebacterium
  • pasteurella multocida (cats)
  • mycobacterium
  • actinomycetes
  • nocardia
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12
Q

What are some GRAM POSITIVE ANAEROBIC bacteria that are involved in wound infections, draining tracts and abscesses?

A

Clostridium

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13
Q

What are some GRAM NEGATIVE ANEROBES that are involved in wound infections, draining tracts and abscesses?

A
  • Fusobacterium
  • Bacteroides
  • Dichelobacter
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14
Q

Which bacteria may potentially cause necrotizing fasciitis and toxic shock syndrome in dogs?

A

Streptococcus Canis

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15
Q

If you have an abscess how would you want to transport it for diagnostics?

A

FNA or contents in anaerobic transport medium

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16
Q

Do not submit dry swabs for culture. True or false?

A

True

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17
Q

If an infection does not respond to ahminoglycosides it indicates to what type of infection?

A

Anaerobic bacterial infection

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18
Q

How do you collect for anaerobic bacteria?

A
  • disinfect skin surface with 70% OH and allow to dry
  • aspirate specimen into the syringe
  • remove air from syringe
  • ship in anaerobic transport medium
19
Q

Dogs and cats presented with non-healing, cutaneous lesions and subcutaneous nodules have what type of infection?

A

mycobacterium infection

20
Q

What is Cutaneous streptothricosis?

A

Dermatophilus congolesi (look like tram tracks)

21
Q

What are the host of Dermatophilus congolensis?

A

cattle, sheep, goat and horse

22
Q

This bacterial skin lesion in cattle is called lumpy jaw. What bacterial species and pathogenesis does it present?

A
  • actinomyces bovis

- pyogranulomatous osteomyelitis

23
Q

What causes foot rot in cattle, sheep and goats?

A

Fusobacterium necrophorum

24
Q

What causes facial eczema due to photosensitization?

A

Mycotoxins (sporidesmin; pithomyces chartarum)

25
Dermatophytosis infections in dogs?
- Microsporum canis - Microsporum gypseum - Trichophyton mentagrophytes
26
Dermatophytosis infection in cats?
Microsporum canis (asymptomatic carriers)
27
Dermatophytosis infection in horses?
- Trichophyton metagrophytes | - Trichophyton equinum
28
Dermatophytosis infection in cattle?
Trichophyton verrucosum
29
Dermatophytosis infection in pigs?
Microsporum nanum
30
When dealing with a fungal lesion, where on the lesion should you collect? A. Center B. Periphery
B. Periphery
31
Which fungal infection would you see a fluorescence with?
Microsporum canis
32
Persian cats have pseudomycetoma a subcutaneous nodule from what bacterial species?
Microsporum canis
33
Griseofulvin acts against what type of fungus?
- dermatophytes - PO only - acts on mitotic spindles
34
Cryptococcus neoformans infects which parts?
Lungs, CNS, eyes and skin
35
Blastomyces dermatitidis infects what?
- lungs primary | - skin lesions in disseminated disease
36
Sporothrix schenckii infects what?
cutaneous and lymphatics
37
Which has a capsule? A. Cryptococcus neoformans B. Coccidiodies immitis
A. Cryptococcus neoformans
38
Swamp cancer is also known as?
Pythium insidiosum
39
Streptococcus equi sub equi causes what in horses?
strangles - lymphadentitis
40
Cornebacterium pseudotuberculosis causes what in horses?
pigeon fever - ulcerative lymphangitis
41
Sporothrix schenkii causes what in horses?
lymphocutaneous lesions
42
Burkholderia mallei causes what in horses?
- Glanders (pulmonary or nasal form) | - Farci (skin form)
43
Burkholderia pseudomallei causes what in horses?
Meliodosis or pseudoglanders
44
What causes diamond skin disease in pigs?
Erysipelothrix rhusiopathiae