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31 Cards in this Set
- Front
- Back
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lesion
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an area of pathological 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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flat, discolored spot on skin up to 1 cm across
(e.g. freckle) |
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patch
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flat, discolored area on skin larger than 1 cm
(e.g. vitiligo) |
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papule
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solid mass on skin up to 0.5 cm in diameter
(e.g. mole) |
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plaque
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solid mass greater than 1 cm in diameter, limited to surface of skin
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nodule
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solid mass greater than 1 cm, extends deeper into the epidermis
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tumor
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solid mass larger than 1-2 cm
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wheal
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area of localized skin edema
(e.g. hive) |
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vesicle
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little bladder;
elevated fluid-filled sac (blister) |
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bulla
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blister larger than 0.5 cm
(e.g. second-degree burn) |
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pustule
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pus-filled sac
(e.g. pimple) |
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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 area of moisture but no bleeding |
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ulcer
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open sore on skin or mucous membrane that can bleed and scar
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excoriation
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scratch mark
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fissure
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linear crack in the skin
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scale
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think flake of exfoliated epidermis
(e.g. dandruff) |
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crust
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dried residue of serum, pus, blood on skin
(e.g. in impetigo) |
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cicatrix of skin
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scar;
mark left by the healing of a sore or wound showing replacement of destroyed tissue by fibrous tissue |
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keloid
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abnormal overgrowth of scar tissue that is thick and irregular
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vascular lesions
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lesions of a blood vessel
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cherry angioma
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small, round, brigh-red blood vessel tumor, often on trunk of eldery
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telangiectasia
spider angioma |
tiny, red blood vessel lesion formed by dilating group of blood vessles radiating from a central arteriole most commonly seen on face, neck, or chest
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purpuric lesions
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purpura: lesions as a result of hemorrahges into the skin
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petechia
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spot; small purpura;
reddish-brown, minute hemorrhagic spot on skin that indicates a bleeding tendency |
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ecchymosis
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bruise; large purpura;
black and blue mark |
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epidermal tumors
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skin tumors arising from epidermis
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nevus
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mole;
congenital malformation o skin |
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dysplastic nevus
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mole with precancerous changes
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verruca
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wart;
epidermal tumor caused by a papilloma virus |
