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VM 610 Derm > Final > Flashcards

Final Flashcards

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Dermatology Board Prep flashcards
1
Q

What is classical presentation for ringworm in horses?

A

alopecia around periocular, face, girth area

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2
Q

What horse derm dz causes severe pruritis, happens in winter, and causes alopecia on the mane and neck?

A

pediculosis (lice)

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3
Q

What horse derm dz happens in the summer, is progressive and causes rat tail?

A

culicoides

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4
Q

What horse derm dz causes extreme pruritis, happens in the summer, and occurs in horses greater than 4 years old?

A

onchocerciasis

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5
Q

What horse derm dz causes paintbrush scabs along dorsum and occurs in fall and winter?

A

dermatophilosis

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6
Q

What is the only pemphigus dz that affects horses?

A

pemphigus foliaceus

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7
Q

What hypersensitivity type is caused by sensitized T lymphocytes and is involved in allergic contact dermatitis?

A

Type 4

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8
Q

What do most treatments for atopic dermatitis act on?

A

TH2 cells

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9
Q

What do animals with atopy have increased numbers of?

A

langerhan cells, T helper 2 cells, cytokines

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10
Q

What is the MOA of cyclosporine?

A

inhibits cytokine release, inhibits langerhan cells, inhibits histamine

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11
Q

What drug can be given with cyclosporine to decrease the dose?

A

ketoconazole

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12
Q

What is the difference between atopy and contact dermatitis?

A

atopy: type 1-4, typically 1
contact: type 4

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13
Q

What are the treatment options for feline plasma cell pdododermatitis?

A

doxycycline, cyclosporine, chrysotherapy

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14
Q

What type of hypersensitivity is food allergies?

A

type 1-3, can be immediate or delayed

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15
Q

What is the disease that causes vesicles and urticarial plaques in response to drug reactions in small animals?

A

erythema multiforme

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16
Q

What is the name of the disease that is a serious drug reaction and results in large areas of skin to necrose and slough?

A

toxic epidermal necrolysis

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17
Q

WHat drugs can cause erythema multiforme?

A

cephalexin, chloramphenicol, gentimicin, thyroxine, TMS, penicillin, aurothioglucose, diethylcarbamazine

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18
Q

What lesions are present in subcorneal pustular dermatosis?

A

nonfolicular pustules that are transient, may be pruritic

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19
Q

What is the treatment for subcorneal pustular dermatosis?

A

sulfonamides

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20
Q

What breed is predisposed to panniculitis?

A

dachsunds

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21
Q

What is the treatment for panniculitis?

A

tocopherol (Vit E), pentoxiphyline, steroids, tetra

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22
Q

Term for sudden hair loss immediately after severe illness or chemotherapy?

A

anagen defluxion

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23
Q

Term for massive shedding due to stressful event.

A

telogen defluxion

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24
Q

What underlying diseases are associated with metabolic epidermal necrosis?

A

hepatic disease (DM, glucagon tumor, cushings)

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25
Q

What causes the lesions associated with metabolic epidermal necrosis?

A

hypoaminoacidemia or high glucagon

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26
Q

What is the characteristic histopathological lesion associated with metabolic epidermal necrosis?

A

french flag lesion - red white and blue

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27
Q

What neoplasms are associated with feline paraneoplastic alopecia?

A

adrenal tumors, glucagonomas, thymic tumors, splenic tumor

28
Q

What is the lesion distribution for feline paraneoplastic alopecia?

A

periocular and ventral abdomen

29
Q

What are treatment options for a dog with symmetric lupoid oncydystrophy?

A

tetra and niacinamide
pentoxyphylline
glucocorticoids

30
Q

What drugs result in ototoxicity in dogs?

A

high concentration chlorhexadine

aminoglycosides

31
Q

What special considerations should be made for using aminoglycosides to treat otitis externa in a dog?

A

allergic rxns, tear in tympanic membrane

32
Q

What feather type helps find vessels on birds?

A

apteria

33
Q

What is the top beak called?

A

rhinotheca

34
Q

What is the bottom beak called?

A

gnathotheca

35
Q

What nutritional deficiency leads to derm problems in birds?

A

vit A

36
Q

What is Beak and feather disease caused by? Where does it multiply?

A

circovirus

bursa of fabricious - younger birds more susceptible

37
Q

What are CS of beak and feather disease?

A

pterylodysplasia (pinched or clubbed feathers)

beak necrosis

38
Q

What species of bird are susceptible to knemidokoptic mange?

A

budgies and canaries

39
Q

What are the CS of knemidokoptes?

A

glaborous skin affected, overgrown beak, whitish lesions

40
Q

What is the most important factor is dysecdysis in reptiles?

A

humidity and hydration

41
Q

What does hypovitaminosis A cause in turtles?

A

squamous metaplasia of cells - eustacian tubes

42
Q

What organisms can be found in rabbit abscesses?

A

not ONLY pasteurella

also s. aureus, proteus, etc

43
Q

What is the tx for small mammal abscesses?

A

must do sx

44
Q

What causes syphilis in rabbits?

A

treponema cuniculi

45
Q

What are the CS of syphillis in rabbits?

A

crusts around nose and genital area

46
Q

What flea med should never be used in rabbits?

A

fipronil (frontline)

47
Q

What fur mite do rabbits get?

A

walking dandruff - cheyletiella

48
Q

What must ivermectin be diluted with?

A

propylene glycol

49
Q

What kind of pigs are most likely to be affected by exudative epidermitis?

A

suckling pig

50
Q

What is the pathogenesis of swine dermatitis and nephropathy syndrome?

A

vasculitis

51
Q

What do the macroconidia of Microsporum nanum look like?

A

ovoid, 1-3 cells

52
Q

What CS are associated with sarcoptes scabei in pigs?

A

aural hematomas, popular dermatitis, reduced feed efficiency

53
Q

What bacteria causes exudative epidermitis?

A

staph hyicus

54
Q

What is the sucking louse that affects pigs?

A

hematopinus suis

55
Q

What breed of pig most commonly gets pityriasis rosea?

A

landrace

56
Q

What have erysipelas outbreak sources been associated with?

A

birds

57
Q

What causes giant cell pneumonia in landrace pigs?

A

dermatosis vegetans

58
Q

What pig skin diseases are zoonotic?

A

erysipelas, sarcoptes, m. nanum (NOT swine pox)

59
Q

What breeds of pigs get scrotal hemangiomas?

A

yorkshire and berkshire

60
Q

What is parakeratosis due to in pigs?

A

excess calcium

61
Q

How long can erysipelas survive in the environment?

A

6 months

62
Q

What is hog choler caused by? (classical swine fever)

A

pestivirus

63
Q

What kind of bacteria is erysipelas?

A

gram + rod

64
Q

What plant causes skin necrosis when fed along grains in pigs?

A

claviceps purpurea

65
Q

What are the CS of subacute exudative epidermitis?

A

thickened/wrinkled skin with furrows

VM 610 Derm (3 decks)

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