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LAIM > Dermatology > Flashcards

Dermatology Flashcards

1
Q

Horse with alopecia up to hocks

A

Mange, chorioptes?

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2
Q

Chorioptes mange sheep

A

Lower limbs and scrotum

Reportable

No zoonotic

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3
Q

Filly with skin lesions

A

Herditary equine regional dermal asthenia?

Easily torn skin, seroms/hematomas, scars, joint laxity

QH, paint, appaloosa

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4
Q

Horse with skin lesions in head, limbs and ventrum. Also acantholysis

A

Penfigus foliaceus

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5
Q

Cow with lesions in the skin

A

cutaneous lymphosarcoma?

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6
Q

Calf with mases in head

A

papilloma virus

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7
Q

Herd problem with lesions, vesicles, erosions skin udder

A

BHV-2

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8
Q

Expression BPV in sarcoids

A

Type of sarcoids

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9
Q

Yearling bull with proliferative lesions in facet of penis

A

BPV

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10
Q

Cows with ulcerative teats

A

Bovine herpes mamilitis?

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11
Q

Skin disease not causing vasculitis

A

Erytheme multiforme

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12
Q

Horse with ulcerative skin, vesicles and ulcers in mucous membranes. Tested negative for vesicular stomatitis

A

Bullous pemphigoid

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13
Q

Name the disease and the organism observed in the image

A

Dermatophilosis: Dermatophilus congolensis

“rain rot”

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14
Q

Vector of aural plaques?

A

Culicoides

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15
Q

BHV-2

A

Bovine herpes mammilitis

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16
Q

Heifer with circular alopecia around the eye. Handlers have been advised about wearing gloves!

A

“Ringworm” Dermatophytosis

Tricophytum verrucosum

17
Q

Agent of equine epizootic lymphangitis

A

Histoplasma capsulatum

18
Q

Horse biting louse

A

Damalinia

19
Q

Horse sucking louse

A

Haematopinnus asini

20
Q

Lesions of Chorioptic mange

A

Lower limbs and scrotum

21
Q

Shire mare with loss of hair in legs and constant pruritus. Cause and how to treat

A

Mange, chorioptes

Treat with lyme sulfur

22
Q

Sheep with pruritus, pustules, crusts and matted wool. Based on the diagnosis it has to be reported to the state veterinarian

A

Psoroptic mange

23
Q

Ear mite in horses and goats

A

Psoroptes cuniculi

Treat with ivermectin

24
Q

First areas affected by sarcoptic mange

A

Non-wool areas first, ears

25
Q

Pig with alopecia, abscess in face, pruritus, weight loss, hyperkeratosis, comedones. The nutrition in the pig has been deficient

A

Demodex phylloides

Treat with lyme sulfur, doramectin

26
Q

Drug used for cutaneous lymphoma

A

Progesterone

27
Q

Types of melanomas

A

Dermal melanoma–> deep dermis–> gray horses >6yo –> typical locations (benign in gray/ more malignant in solid color)

Melanocytic nevi (melanocytoma)–> epidermal-dermal junction–> any color < 6yo –> atypical locations (benign)

Anaplastic malignant melanomas (poor pigment) –> >20yo any color –> Metastasis lungs, spleen, liver

28
Q

Which is thought to be the cause of equine sarcoids?

A

Bovine papillomavirus (BPV) types 1 and 2

29
Q

Types of sarcoids

A
  1. Predom epidermal component/ indolent
  • Verroucous: sessile (flat variety) or pedunculated (warty variety)
  • Ocult: almost-circular alopecia with gray, scaly surface
  1. Predom dermal component/ invasive
    * Nodular/fibroblastic: dermal or subcut mass that can ulcerate –> locally invasive –> can form regional metastasis
  2. Mixed: transition
30
Q

Only chemotherapeutic that has shown efficacy for equine sarcoid

A

Cisplatin

31
Q

Piglet with greasy exudate around eyes, eruption nose, tongue, lips coronets. No fever

A

Staphylococcus hycus “Greasy pig”

32
Q

Zinc deficiency in cattle

A

Hyperkeratosis

33
Q

The llama in the picture has a diet deficient in minerals, what is the cause of the alopecia?

A

Zinc deficiency, cause hyperkeratosis

  • Not a true zinc deficiency but is idiopathic hyperkeratosis responsive to zinc supplementation

LAIM (20 decks)

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