Podcast
Questions and Answers
Which of the following is the most common bacterial pathogen responsible for pyoderma in dogs?
Which of the following is the most common bacterial pathogen responsible for pyoderma in dogs?
What clinical sign is most commonly associated with deep pyoderma in dogs?
What clinical sign is most commonly associated with deep pyoderma in dogs?
What is a key feature that helps differentiate superficial pyoderma from urticaria in dogs?
What is a key feature that helps differentiate superficial pyoderma from urticaria in dogs?
Which of the following is NOT a common clinical finding in superficial pyoderma?
Which of the following is NOT a common clinical finding in superficial pyoderma?
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Why is it important to perform multiple deep skin scrapings in the diagnosis of pyoderma?
Why is it important to perform multiple deep skin scrapings in the diagnosis of pyoderma?
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Why is it crucial to perform bacterial culture and susceptibility testing in cases of pyoderma?
Why is it crucial to perform bacterial culture and susceptibility testing in cases of pyoderma?
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What is the minimum recommended duration of antibiotic therapy for superficial pyoderma in dogs?
What is the minimum recommended duration of antibiotic therapy for superficial pyoderma in dogs?
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In cases of chronic or recurrent pyoderma, how long might it take for complete resolution?
In cases of chronic or recurrent pyoderma, how long might it take for complete resolution?
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Flashcards
Pyoderma
Pyoderma
A bacterial skin infection characterized by pus formation.
Staphylococcus pseudintermedius
Staphylococcus pseudintermedius
Primary pathogen causing bacterial pyoderma in dogs.
Superficial pyoderma symptoms
Superficial pyoderma symptoms
Common signs include alopecia, papules, crusts, and scaling.
Deep pyoderma symptoms
Deep pyoderma symptoms
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Diagnosis of pyoderma
Diagnosis of pyoderma
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Malassezia
Malassezia
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Antibiotic treatment duration
Antibiotic treatment duration
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Chronic pyoderma treatment needs
Chronic pyoderma treatment needs
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Study Notes
Bacterial Dermatitis (Pyoderma)
- Pyoderma is pus in the skin, often caused by bacterial infections.
- Staphylococcus pseudintermedius is the primary pathogen in dogs.
- Bacterial pyoderma arises from overgrowth of normal or transient skin flora.
Clinical Signs (Superficial Pyoderma)
- Excessive scaling, often with hairs piercing scales.
- Variable pruritus (itching).
- Multifocal alopecia (hair loss), follicular papules/pustules, epidermal collarettes, and seros crusts are common.
- Affected areas mainly on trunk, head, and proximal limbs.
- Short-haired breeds may show multiple superficial papules resembling urticaria (hives). Hairs are easily epilated (pulled out).
Clinical Signs (Deep Pyoderma)
- Pain, crusting, odor, and blood/pus exudation.
- Erythema (redness), swelling, ulcerations, hemorrhagic crusts, and bullae (fluid-filled blisters), hair loss, and draining tracts.
- Draining tracts often have serohemorrhagic or purulent exudate (fluid).
Diagnosis
- Skin impressions are crucial to detect concurrent Malassezia infection.
- Staphylococcus and Malassezia often co-exist (~50% of cases) and require combined treatment.
- Multiple deep skin scrapes to rule out parasitic infections (especially Demodex canis).
- Dermatophyte cultures to exclude dermatophytosis.
- Bacterial culture & susceptibility testing is essential due to methicillin-resistant Staphylococcus prevalence.
Treatment
- Superficial pyoderma requires antibiotics for at least 21 days, ideally 30 days.
- All clinical signs (except complete hair regrowth and hyperpigmentation resolution) should resolve for at least 7 days before stopping antibiotics.
- Chronic, recurrent, or deep pyoderma often takes 8-12 weeks or longer to resolve completely.
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Description
This quiz covers bacterial dermatitis, specifically pyoderma, including its causes, clinical signs, and diagnosis. Learn about the symptoms of superficial and deep pyoderma in dogs, and how Staphylococcus pseudintermedius plays a key role in the condition. Perfect for veterinary students and professionals looking to enhance their knowledge of skin infections in canines.
