- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
52 Cards in this Set
- Front
- Back
|
Macule
|
a flat, circumscribes nonpalpable spot < 1cm in diameter w/ a change in skin color
|
|
examples of a macule
|
hemorrhage, pigmentation (lentigo, vitiligo)
|
|
patch
|
a macule > 1cm
|
|
examples of a patch
|
hyperpigmmentation in endocrine disorders, depigmentation, erythema, or local hemorrhage
|
|
papule
|
a small elevation of the skin up to 1cm in diameter that can be palpated
|
|
examples of a papule
|
calcinosis cutis, reactive histiocytosis, eosinophilic plaque
|
|
nodule
|
a circumscribed, firm, solid elevation that usually extends into deeper layers, > 1cm
|
|
examples of a nodule
|
bacterial or fungal infection, infectious or sterile granuloma, cutaneous lymphoma, cutaneous histiocytoma, cutaneous MCT
|
|
a nodule is usually due to?
|
infiltrations of inflammatory cells or neoplastic cells
|
|
tumor
|
a large mass (neoplasia implied) that may involve any structure of the skin or subcutis
|
|
cyst
|
cavity lined by epithelium & filled w/liquid or semisolid material & located in dermis or subcutis
a smooth, well-circumscribes, fluctuant to solid mass |
|
vesicle
|
elevated, well-circumscribed, fluid-filled lesion < 1cm in diameter
|
|
vesicles are rarely seen in what spp and why?
|
dogs & cats bc they are transient & fragile
|
|
examples of a vesicle
|
burn, viral infection, immune-mediated dz
|
|
bulle
|
a large vesicle/blister > 1cm
|
|
pustule
|
a small circumscribes pus-filled elevation of the epidermis
|
|
a pustule contained primarily what cells?
|
neutrophils if infectious
eosinophils if parasitic or allergic sterile is pemphigoid foliaceus |
|
a pustule can be located in what skin level?
|
intraepidermal, subepidermal, or follicular
|
|
abscess
|
a well demarcated fluctuant lesion resulting from dermal or SQ accumulation of pus
|
|
abscess compared to pustule
|
larger & deeper than pustules
|
|
wheal
|
a sharply circumscribed, elevated, irregular-shaped area of cutaneous edems
|
|
traits of wheals
|
blanches w/perssure & usually disappears w/i minutes or hours
|
|
examples of a wheals
|
insect bites, utricaria, allergic rxn
|
|
name all primary skin lesions
|
macule, patch, papule, plaque, nodule, tumor, cyst, vesicle, bulla, pustule, abscess, wheal
|
|
name all secondaryskin lesions
|
epidermal collarette, erosion, ulcer, excoriation, scar, fissure, lichenification, callus
|
|
name all skin lesions that can be primary or secondary
|
scale, crust, comedo
|
|
epidermal collarette
|
a circular rim of keratin flakes following loss of the "roof" or a vesicle, bulla, pustule, or papule, or the hyperkeratosis caused by focal inflammation as seen w/papules & pustules
|
|
erosion
|
loss of part of the epidermis
|
|
what does an erosion look like?
|
depressed, moist, glistening, shallow, does not penetrate the basal laminar zone
|
|
how does an erosion heal?
|
without scarring
|
|
erosions can be secondary to what?
|
vesicle or pustule rupture or surface trauma
|
|
ulcer
|
loss of epidermis AND basement membrane w/exposure of the dermis, concave
|
|
how does an ulcer usually heal?
|
scarring
|
|
excoriation
|
erosions or ulcers caused by scratching, biting, or rubbing, usually due to pruritis
|
|
describe excoriations
|
self-produces, inviting secondary bacterial infection, & asre often recognized by their linear pattern (linear loss of epidermis)
|
|
scar
|
thin to thick fibrous tissue that replaces normal skin following injury or laceration to dermis
|
|
most scars in dogs & cats are ?
|
alopecia, atrophic, & depigmented
|
|
fissure
|
linear crack or break from the epidermis to the dermis - may be single or multiple tiny cracks or large clefts several cm long
|
|
fissures occur when?
|
when skin is thick & inelastic & then subjected to sudden swelling from inflammation or traume
|
|
lichenification
|
thickened epidermis secondary to persistent rubbing, scratching, or irritation (chronic injury)
|
|
examples of a lichenification
|
chronic dermatitis, acanthosis nigricans
|
|
callus
|
thick, card, hairless plaque with increased skin creases
|
|
callus are often seen where?
|
over bony prominences, such as elbow or sternum
|
|
scale
|
fragmented, keratinized cells, flaky skin, irregular, thick or thin, dry or oily
|
|
examples of a primary scale
|
idiopathic seborrhea
|
|
examples of a secondary scale
|
chronic inflammation
|
|
crust
|
an accumulation of dried exudated, serum, pus, blood, scaled, or medications adherent to the surface
|
|
examples of a primary crust
|
primary seborrhea, zinc responsive dermatosis
|
|
examples of a secondary crust
|
self-trauma, pyoderma
|
|
comedo
|
a dilated hair follicle filled w/cornified cells & sebacoue material
|
|
examples of a primary coemdo
|
feline acne, Cushing's
|
|
examples of a secondary comedo
|
seborrhea, iatrogenic steroids
|
