Q2 INTEGUMENT Flashcards

1
Q

layer of the epidermis (deep to superficial)

A

stratum basale, spinosum, granulosum, lucidum, corneum

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2
Q

Follicular ostia

A

Skin pore

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3
Q

What type of gland are sebaceous

A

Holocrine

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4
Q

What type of gland are sweat glands

A

Apocrine or eccrine based on hair vs non-hair

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5
Q

Orthokeratosis

A

Nuclei absent

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6
Q

Parakeratosis

A

Nuclei present

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7
Q

Spongiosis

A

Intracellular edema

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8
Q

Acantholysis

A

Disruption of desmosomes between keratinocytes (usually immune mediated)

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9
Q

Granulation tissue

A

Capillaries and fibroblasts perpendicularly orientated

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10
Q

Furunculosis

A

Rupture of the hair follicle

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11
Q

Hidradentitis

A

Apocrine gland inflammation

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12
Q

Photosensitization types

A

1: primary ingestion of photodynamic substance
2: inherited enzyme deficiency
3: hepatogenous disease causes phylloerythin to accumulate in the blood

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13
Q

Pithomycotoxicosis

A

Ovine facial eczema caused by build up of mycotoxins

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14
Q

Dry gangrene (fescue foot)

A

Ergotamine and ergovaline causes vasoconstriction and ischemic necrosis of the hind legs

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15
Q

Acral lick dermatitis

A

Psychogenic hyperplastic dermatitis on the extremities

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16
Q

Acral lick dermatitis

A

Psychogenic hyperplastic dermatitis on canine extremities

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17
Q

Intertrigo

A

Skin fold dermatitis with retained moisture creates a great environment for bacteria

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18
Q

Poxviridae

A

Mechanical vectors, eosinophilic inclusion bodies
Ex. Swine pox, orf, lumpy skin disease

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19
Q

Papillomaviridae

A

Benign epithelial proliferation then enters stratum basale

20
Q

Superficial pyoderma

A

Heals without scarring, no lymph node involvement, epidermis, epidermal collarettes (impetigo, greasy pig disease)

21
Q

Deep pyoderma

A

Hair follicle, dermis, and hypodermis affected, draining tracts and regional lymphadenitis/ furunculosis

22
Q

Which bacteria produce septic embolism and vasculitis near the skin?

A

E. rhusiopathiae, salmonella, and E. coli, all produce toxins

23
Q

which viral diseases mimic bacterial toxins?

A

porcine dermatitis and nephropathy syndrome (PDNS), african swin fever, and classical swine fever

24
Q

dermatophytosis

A

ringworm!! could be trichophyton or microsporum, furunculosis, intracorneal microabscesses

25
Q

pythiosis

A

swamp cancer, limbs of animals/ water mould

26
Q

sporotrichosis

A

dermatitis and lymphangitis (zoonotic)

27
Q

demodicosis

A

in hair follicle (mange if immune compromised)

28
Q

scabies/ notoedric mange

A

ears, head, neck, zoonotic

29
Q

psoroptic mange

A

sheep scabs, external ear canals and body

30
Q

chorioptic mange

A

back end of horse and ruminants

31
Q

equine cutaneous habronemiasis

A

summer sores, spread by flies

32
Q

onchocerca infection

A

ventral midline of horses

33
Q

urticaria

A

hives

34
Q

atopic dermatitis

A

IgE type 1, secondary infections with staph and malassezia

35
Q

insect bite hypersensitivity

A

immune type 1 and 4

36
Q

pemphigus foliaceus

A

type 2, targets desmoglein-1, intragranular pustules

37
Q

pemphigus vulgaris

A

type 2, targets desmoglein 1 and 3, suprabasilar vesicles, oral lesions

38
Q

bullous pemphigoid

A

targets hemidesmosomal proteins, very red lesions, mostly subbasilar clefts

39
Q

lupoid onychitis

A

type 3, claw sloughing then regrowth of misshapen claw, biopsy needs nailbed epithelium

40
Q

systemic lupus erythematosus

A

type 3, ab in skin BM and lymphohistiocytic dermatitis with subepidermal vesicles

41
Q

discoid lupus erythmatosus

A

photosensitive nasal dermatitis

42
Q

what can cause depigmentation in ruminants

A

copper deficiency

43
Q

pityriasis rosea

A

pigs 3-14 weeks old, resolves spontaneously, crusts groin

44
Q

puppy strangles

A

juvenile sterile granulomatous dermatitis and lymphadenitis of puppies under 4 months

45
Q

canine zinc responsive dermatosis

A

huskies, decreased intestinal absorption of Zn, scales and plaques, parakeratosis

46
Q

endocrine alopecia causes

A

hypothyroidism, hyperadrenocorticism, hyperestrogenism, hypersomatotropism, hyposomatotropism

47
Q

plasma cell pododermatitis

A

cats MT/MC pads swollen with white streaking