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Pathology (shared) > Derm Terms > Flashcards

Derm Terms Flashcards

1
Q

Vesicle/Bulla

Degeneration/Necrosis

A

Palpable elevation filled with clear fluid

Vesicle 1 cm

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2
Q

Pustule

Inflammation & Repair

A

Palpable elevation filled with pus

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3
Q

Crust
(Degeneration/Necrosis
Inflammation & Repair
Disorder of Growth)

A

Dried exudate, serum, blood, and scale that is adhered to the skin surface

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4
Q

Papules
(Inflammation & Repair
Disorder of Growth
Deposits & Pigmentation)

A

Palpable, solid, elevated mass

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5
Q

Nodules

A

Papules that are greater > 1cm in diameter and deeper

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6
Q

Plaques

A

Coalesced papules

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7
Q

Ulcers

A

Loss of epidermis with exposure of dermis

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8
Q

Scale
(Inflammation & Repair
Disorder of Growth)

A

Accumulation of loose keratinized cells

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9
Q

Epidermal collarette

A

circular rim of scale that occurs secondary to rupture of a vesicle, pustule, or papule

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10
Q

Lichenification

Inflammation & Repair

A

Thickening and hardening of the skin

Elephant skin

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11
Q

Depigmentation

A

immune mediated inflammatory lesions

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12
Q

Pyoderma

A

Clinical term encompassing several diseases

“pus in the skin” usually bacterial

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13
Q

Impetigo

A

Superficial pustular dermatitis

usually seen in puppies

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14
Q

Intertrigo

A

skin fold pyoderma

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15
Q

Pyotraumatic Dermatitis

“Hot Spots”

A

ulcerative/exudative dermatitis

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16
Q

Furunculosis

A

follicular crusting and rupture

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17
Q

Pemphigus foliaceous

A

group of auto-immune diseases involving type II hypersensitivity against cell adhesion proteins (desmosomes)

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18
Q

Macule

A

flat, distinct, discolored area of skin less than 1 cm wide that does not involve any change in the thickness or texture of the skin

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19
Q

Callus

A

raised, irregular patch of thickened skin developing from chronic friction, usually over pressure points

20
Q

Papillomas

A

Caused by papilloma virus, benign, spontaneously regress

21
Q

Equine sarcoid

A

Looks like proud flesh, caused by bovine papilloma virus, does not metastasize

22
Q

Squamous cell carcinoma

A

solar radiation -> chronic injury commonly involved

23
Q

Sebaceous adenoma

A

benign growth of dogs

24
Q

Lipoma

A

benign growth of dogs, looks like normal fat

25
Q

Mast cell tumor

A

All considered potentially malignant

Only malignant in dogs, benign in cats and horses

26
Q

Histiocytoma

A

Dome-shaped, langerhans’ cell origin.

Benign, often regress

27
Q

Melanoma

A

usually dark brown in color

28
Q

Hemangioma/sarcoma

A

due to solar radiation, not as malignant as visceral hemangiosarcome

29
Q

Cutanueus lymphoma

A

epitheliotropic (t-cells) or nonepitheliotropic (t and B cells)
many species are affected
poor prognosis

30
Q

Hyperpigmentation

A

usually increase in amount of melanin rather than number of melanocytes

31
Q

Acanthosis nigricans

A

genetically determined disease of young dachshunds

32
Q

Hypopigmentation

melanocytopenic vs. melanopenic

A

inherited lack of melanocytes

33
Q

Piebaldism

A

foci or lack of melanocytes

34
Q

Albinism

A

melanocytes are present but the defect to synthesize melanin

35
Q

Vitiligo

A

idiopathic acquired melanocytopenic hypomelanosis

36
Q

Calcinosis cutis

A

CUSHINGS DISEASE
associated with hyperadrenocorticism
erythematous to white gritty plaques and nodules

37
Q

Calcinosis circumscripta

A

young, rapidly-growing, large breed dogs

single hard subcutaneous nodule, usually over pressure points or previous site of trauma

38
Q

Steatosis

A

infiltration of fat

39
Q

Intercellular edema causes a condition called _______, which leads to formation of vesicle/bulla.

A

spongiosis

40
Q

Intracellular edema causes a condition called _______, which leads to formation of vesicle/bulla.

A

hydropic degeneration

41
Q

Disruption of intercellular junctions is termed _______, which leads to formation of vesicle/bulla.

A

acantholysis

42
Q

What is it called when the stratum corneum forms the roof of the vesicle/bulla?

A

Subcorneal (like in impetigo or pemphigus foliaceous)

43
Q

What is it called when the stratum spinosum forms the roof of the vesicle/bulla?

A

Suprabasal (like in pemphigus vulgaris)

44
Q

What is it called when the entire epidermis separates from the dermis and forms the roof of the vesicle/bulla?

A

Subepidermal (as in bullous pemphigoid)

45
Q

type IV hypersensitivity towards antigens on the surface of keratinocytes inducing apoptosis is called (2 types):

A

Erythema Multiforme & Toxic Epidermal Necrolysis

46
Q

inflammation of subcutaneous adipose tissue

A

Panniculitis

Pathology (shared) (3 decks)

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