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15 Cards in this Set

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Petechiae
Deep red spot of pinpoint hemorrhage under the skin.
Small (punctuate)
Hemorrhagic
Purpura
Condition due to hemmorhage into the skin. Red blood cells and blood pigments are deposited in tissues.
Ecchymosis
Big Bruise, usually >3mm.
Atrophy
Skin level depressed with loss of tissue. Thinning of the epidermis.
Crust
Thickened dried out exudate/serum left when vesicles/papules burst or dry up. Can be red brown (blood),honey colored (serum) or yellow (pus)
Erosion
Scooped out, shallow depression. Superficial with lost epidermis, moist but without bleeding. (also start of ulcer)
Excoriation
Superficial, self inflicted abrasion. Scratches from intense itching.
Fissure
Liner crack with abrupt edges. Extends into dermis.
Lichenification
Prolonged intense scratching thickens skin. Skin has moss-like appearance.
Scale
Epidermal thickening that causes flakes of skin. Appearance of flakes are dry or greasy, silvery or white.
Scar
Skin tissue replaced by collagen.
Ulcer
Deep depression extending into dermis. May bleed, irregular shape, leaves scar.
Annular
Morphology
Circular area with centeral clearing.
Iris or Target
Morphology
Resembles iris of the eye, bull's eye.
Linear
Morphology
i.e. scratch, line of stipe
also used to describe arrangement of lesions.