dermatology pathology disease

canine superficial pyoderma

methicillin-resistant stap. pseudointermedius

impedtigo “puppy pyoderma”

canine mucocutaneous pyoderma

pyoderma important bacteria

superficial spreading pyoderma/hot spot/pyotraumatic dermatitis in dogs

deep bacterial infections (deep pyoderma)

subcutanerous abscessation

bacterial granulomatous dermatitis

non-mycobacterial granulomas

septicemia

gram (-) or gram (+) bacteremia

streptococcal toxic shock-like syndrome (stretococcus canis)

exuberant granulation tissue (proud flesh)

wound contracture

hypertrophic scarring

aloe vera

preparation h

solcoseryl

honey

triple antibiotic

silver sulfadiazine

nitrofurazone

dermatophytosis (ringworm)

folliculitis!!

malassezia dermatitis

subcutaneous mycoses

traumatic implantation of fungi from the environment (opportunistic)

leads to nodular granulomatous to pyogranulomatous panniculitis and dermatitis

eumycotic mycetoma

bacterial or fungal

dermatophytic pseudomycetoma (deep dermatophytosis)

phaeohyphomycosis

zygomycosis

sporotrichosis

cryptococcus

ate chicken feces

pythiosis- pythium insidiosum

blastomycoses

skin lungs, bone marrow

protothecosis

algal infection

chlorellosis

algal infection

demodicosis

no inflammation bc they are within the hair follicles unless they rupture

scabies

notoedric mites

otodectic mites

psoroptic mites

chorioptic mange

cheyletiellosis

walking dandruff

trombiculiasis

tick infestation derm lesions

lice infestation derm lesions

fleas infestation derm lesions

blood sucking flies (hematophagous)

myiasis-causing flies (tissue invading larvae)

nonbiting nuisance flies

onchocera spp

cattle horse dogs

habronema/draschia spp

horses, “summer sores”

strongyloides, ancylostoma, uncinaria (larval migration)

stephanofilaria spp

cattle buffalo

cutaneous leishmaniasis

protozoa

morbilliviruses

hyperkeratosis (pads and nose) epidermal hyerplasia during systemic infection

flaviviruses/pestiviruses (swine fever)

petechiae, hemorrhages vascular injury → dermal hemorrhage

poxviruses- sheeppox and goat pox

poxviruses- lumpy skin disease

poxvirus pathogenesis and histologic features

zoonotic

herpesviruses- dermatotropic and nondermatotrpic

papillomaviruses

immune mediated disease- ex: pemphigus foliaceus and discoid lupus

endocrine and metabolic skin diseases

congenital/ hereditary skin disease

nutritional/toxic skin disease

physical/environmental causes (trauma, pressure, thermal)