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Traumatic Dermatitis Superficial And Deep Folliculitis Furunculosis Pododermatitis Notes

Veterinary Medicine Notes > Small Animal Internal Disease - Skin Notes

This is an extract of our Traumatic Dermatitis Superficial And Deep Folliculitis Furunculosis Pododermatitis document, which we sell as part of our Small Animal Internal Disease - Skin Notes collection written by the top tier of University Of Veterinary Medicine And Pharmacy Of Kosice, Slovakia students.

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1. Skin diseases - Pyoderma, Pyotraumatic dermatitis, Superficial and Deep Folliculitis, Furunculosis, Pododermatitis PYODERMA Pyoderma = Pyogenic infection of the skin - generally bacterial but can involve fungi (opportunists)

* Primary Pyoderma - Skin infection what doesn't reoccur after treatment

* Secondary Pyoderma - More common; Assoc. with persistant underlying problems that alter the skins resistance to infection. Usually reoccurs until primary condition is corrected Causal Agents

* Staph. Intermedius (Also Staph. Schleiferi)

* Pseudomonas sp., Proteus sp and E-coli - In chronic, reoccurant or deep pyodermas (as 20 invaders)

* Bacteroides spp, Fusobacterium spp., Clostridium spp. - In deep pyodermas

1. Surface Pyoderma Pyotraumatic Dermatitis = Acute moist dermatitis or "hot spot" Etiology

* Self trauma to the skin due to an underlying pruritic pr painful process - focal surface pyoderma.

* Underlying conditions = Allergic skin diseases, Ectoparasites, Otitis Externa, Environmental causes, Anal Sac issues, Musculoskeletal disorders

* Most common cause is flea allergy dermatitis

Clinical Signs

* Single, alopecic lesion that is well circumscribed, erythematous, thickened and erosive; there is a thin film of exudate on top.

* Lesion devps after licking/chewing and can develop within hours of trauma!
Diagnosis: History of self-trauma, acute onset, rapid development of the lesion, typical appearance on Physical exam Treatment: Topical therapy

* Clip long hairs, Cleanse the area (chlorhexidine)


Dry the lesion and apply topical antibiotic/corticosteroid cream (e.g. panalog cream) Systemic therapy

* Corticosteroids: if the lesion is painful and pruritic


Systemic antibiotics - min. 3 weeks + 1 week after disappearance of clinical signs

Skin fold Pyoderma - Intertrigo Etiology:

* Deep skin folds - Skin rubs against itself) ? irritation and trauma ? bacterial colonisation of the skin ? surface pyoderma

* Skin folds create most dark warm anaerobic conditions for bacteria to flourish. Folds retains skin secretions and skin cells promoting bacterial or yeast growth

* Staph. intermedius and Malassezia pachydermatis - most common Clinical signs:

* Inflammation and mild exudation of the skin fold; malodorous.



Best identified by widening of the skin fold Lip, Facial, Vulvar, Tail, Obesity fold, or Generalized


* Cleanse, disinfect and dry





Bacteria only -2x daily with benzoyl peroxide containing gel Yeast +/- Bacteria - 2X daily miconazole and chlorhexidine containing preparation In the case of sever inflammatory response - 2-3days, 2X dailt panalog cream Preventive therapy: surgical correction by removal of the skin fold

2. Superficial pyoderma

* = Bacterial invasion of the epidermis


2 manifestations: o infection of the stratum corneum and pustule formation = Impetigo or puppy pyoderma o infection of the hair follicle (folliculitis)


Staph. Intermedius is the most common pathogen

Impetigo Etiology:

* Young dogs before puberty


Contributing factors - Poor nutrition, poor environment, ecto or endoparasite infection

Clinical signs:

* Pustules in the inguinal and ventral abdomen regions that DO NOT involve the hair follicles

* When pustules rupture -yellow-brownish crust forms



Usually non-pruritic Usually an incidental finding during exam of newly acquired puppies

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