Draining sinus tracts Flashcards

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1
Q

Define sinus

A

tract from skin surface to a deeper, but abnormal, focus, usually in therdermis or subcutis

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2
Q

Define fistula

A

tract between two epithelium- line structures (e.g. skin and a hollow organ)

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3
Q

List 4 ways material can reach the dermis/ subcutis

A

penetration from surface
breakdown of the hair follicle (furuncolosis)
systemic routes
formed within skin

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4
Q

draining tracts usually reflect ….( 3 things)

A

deep infection
foreign body
immune-mediated/ autoimmune disease

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5
Q

List the 3 most common infectious causes of draining sinus tracts

A

deep pyoderma
abscess/ cellulitis
demodicosis

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6
Q

List 3 non-infectious causes of draining sinus tracts

A

anal furunculosis (perianal fistulae)
metatarsal fistulation
sterile panniculitis- steatitis (yellow fat disease)

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7
Q

what causes pansteatitis (yellow fat disease)

A

insufficient dietary vit E and/or excessive dietary unsaturated fatty acids
cats with fish only diet are at increased risk

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8
Q

Diagnnosis of pansteatitis

A

general history + clinical signs
definitive= skin biopsy

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9
Q

management of pansteatitis

A

supportive care- analgesia and parenteral
need to be fed high-quality properly balanced diet

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10
Q

what breed has a genetic predisposition for anal furunculosis

A

GSD

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11
Q

Treatment of anal furunculosis

A

immunosupression- ciclosporin
NSADIS
Abs for secondary infection

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12
Q

Treatment of metatarsal fistulation

A

ciclosporin and topical tacrolimus

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