Derm Terms

Question 1

Vesicle/Bulla

Degeneration/Necrosis

Answer 1

Palpable elevation filled with clear fluid

Vesicle 1 cm

Question 2

Pustule

Inflammation & Repair

Answer 2

Palpable elevation filled with pus

Question 3

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

Answer 3

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

Question 4

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

Answer 4

Palpable, solid, elevated mass

Question 5

Nodules

Answer 5

Papules that are greater > 1cm in diameter and deeper

Question 6

Plaques

Answer 6

Coalesced papules

Question 7

Ulcers

Answer 7

Loss of epidermis with exposure of dermis

Question 8

Scale
(Inflammation & Repair
Disorder of Growth)

Answer 8

Accumulation of loose keratinized cells

Question 9

Epidermal collarette

Answer 9

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

Question 10

Lichenification

Inflammation & Repair

Answer 10

Thickening and hardening of the skin

Elephant skin

Question 11

Depigmentation

Answer 11

immune mediated inflammatory lesions

Question 12

Pyoderma

Answer 12

Clinical term encompassing several diseases

“pus in the skin” usually bacterial

Question 13

Impetigo

Answer 13

Superficial pustular dermatitis

usually seen in puppies

Question 14

Intertrigo

Answer 14

skin fold pyoderma

Question 15

Pyotraumatic Dermatitis

“Hot Spots”

Answer 15

ulcerative/exudative dermatitis

Question 16

Furunculosis

Answer 16

follicular crusting and rupture

Question 17

Pemphigus foliaceous

Answer 17

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

Question 18

Macule

Answer 18

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

Question 19

Callus

Answer 19

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

Question 20

Papillomas

Answer 20

Caused by papilloma virus, benign, spontaneously regress

Question 21

Equine sarcoid

Answer 21

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

Question 22

Squamous cell carcinoma

Answer 22

solar radiation -> chronic injury commonly involved

Question 23

Sebaceous adenoma

Answer 23

benign growth of dogs

Question 24

Lipoma

Answer 24

benign growth of dogs, looks like normal fat

Question 25

Mast cell tumor

Answer 25

All considered potentially malignant | Only malignant in dogs, benign in cats and horses

Question 26

Histiocytoma

Answer 26

Dome-shaped, langerhans' cell origin. | Benign, often regress

Question 27

Melanoma

Answer 27

usually dark brown in color

Question 28

Hemangioma/sarcoma

Answer 28

due to solar radiation, not as malignant as visceral hemangiosarcome

Question 29

Cutanueus lymphoma

Answer 29

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

Question 30

Hyperpigmentation

Answer 30

usually increase in amount of melanin rather than number of melanocytes

Question 31

Acanthosis nigricans

Answer 31

genetically determined disease of young dachshunds

Question 32

Hypopigmentation | melanocytopenic vs. melanopenic

Answer 32

inherited lack of melanocytes

Question 33

Piebaldism

Answer 33

foci or lack of melanocytes

Question 34

Albinism

Answer 34

melanocytes are present but the defect to synthesize melanin

Question 35

Vitiligo

Answer 35

idiopathic acquired melanocytopenic hypomelanosis

Question 36

Calcinosis cutis

Answer 36

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

Question 37

Calcinosis circumscripta

Answer 37

young, rapidly-growing, large breed dogs | single hard subcutaneous nodule, usually over pressure points or previous site of trauma

Question 38

Steatosis

Answer 38

infiltration of fat

Question 39

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

Answer 39

spongiosis

Question 40

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

Answer 40

hydropic degeneration

Question 41

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

Answer 41

acantholysis

Question 42

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

Answer 42

Subcorneal (like in impetigo or pemphigus foliaceous)

Question 43

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

Answer 43

Suprabasal (like in pemphigus vulgaris)

Question 44

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

Answer 44

Subepidermal (as in bullous pemphigoid)

Question 45

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

Answer 45

Erythema Multiforme & Toxic Epidermal Necrolysis

Question 46

inflammation of subcutaneous adipose tissue

Answer 46

Panniculitis