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42 Cards in this Set
- Front
- Back
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epithelium
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cells
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lesion
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an area of pathologically altered tissue
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primary lesions
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lesions arising from previously normal skin
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macule
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a flat, discolored spot on the skin up to 1 cm across
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patch
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a flat, discolored area on the skin larger than 1 cm
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papule
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a solid mass on the skin up to 0.5 cm in diameter
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plaque
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a solid mass greater than 1 cm in diameter, limited to the surface of the skin
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nodule
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a solid mass greater than 1 cm, which extends deeper into the epidermis
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tumor
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a solid mass larger than 1-2 cm
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wheal
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an area of localized skin edema.
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vesicle
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little bladder, an elevated, fluid filled sac within or under the epidermis up to .5 cm in diameter
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bulla
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a blister larger than .5 cm
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pustule
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a pus-filled sac
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secondary lesions
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lesions that result in changes in primary lesions
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erosion
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to gnaw away; loss of superficial epidermis leaving an area of moisture but no bleeding
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ulcer
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an open sore on the skin or mucus membrane that can bleed an scar and is sometimes accompanied by infection
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fissure
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a linear crack in the skin
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scale
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a thin flake of exfoliated epidermis
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crust
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dried residue of serum, pus, or blood on the skin
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cicatrix of the skin
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a mark left by the healing of a sore or wound showing the replacement of destroyed tissue by fibrous tissue (SCAR)
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keloid
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an abnormal overgrowth of scar tissue that is thick and irregular (kele=tumor)
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vascular lesions
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lesions of the blood vessel
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cherry angioma
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a small, round, bright red blood vessel tumor on the skin
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telangiectesia
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a tiny, red blood vessel lesion formed by the dilation of a group of blood vessels radiating from a central arteriole
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spider angioma
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most commonly seen on the face, neck, or chest
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purpuric lesions
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purpura
lesions as a result of hemorrhages into the skin |
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petechia
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spot
a reddish-brown, minute hemorrhagic spot on the skin that indicates a bleeding tendency |
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ecchymosis
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bruise
black and blue mark - large purpura |
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nevus
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a congenital malformation on the skin that can be epidermal or vascular - aka mole
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dysplastic nevus
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a mole with precancerous changes
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verruca
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an epidermal tumor caused by a papilloma virus
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alopecia
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baldness
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comedo
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a plug of sebum within the opening of a hair follicle
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closed comedo
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below the skin surface with a white center
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open comedo
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open to the skin surface with a black center caused by the presence of melanin exposed to air
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eruption
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appearance of a skin
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erythma
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redness of skin
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pruritus
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sever itching
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rash
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a general term for skin eruption
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suppuration
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production of purulent matter (pus)
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urticaria
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hives, an eruption of wheal on the skin accompanied by itch
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xeroderma
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dry skin
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