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23 Cards in this Set
- Front
- Back
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Macule
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A circumscribed change n skin color without elevation or depression of the surface
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Patch
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A large macule
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papule
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A circumscribed solid elevation of the skin. Implies involvement of the epidermis and the underlying dermis
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Plaque
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A large, usually flat-topped circumscribed elevation of the skin. Plaques evolve from confluent papules
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Nodule
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A large papule or a solid deep-seated mass in the dermal or subcutaneous tissue. Usually, there is visible elevation in the skin
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Dermal nodule
Subcutaneous nodule |
Dermal: the skin and nodule move over the underlying tissue
Subcutaneous: the skin moves over both the nodule and the underlying tissue |
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Tumor
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a large nodule, or obviously neoplastic mass
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Wheal
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a well circumscribed, flat-topped firm elevation of the skin with a well demarcated, palpable margin produced by edema of the dermis
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Vesicle
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a circumscribed elevation of the epidermis containing serous fluid
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Bulla
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a large vesicle, bulla can form within the epidermis, between the epidermis and the dermis or within the dermis
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Pustule
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a circumscribed elevation of the epidermis containing purulent material, a vesicle containing pus
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Erosion
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a superficial denudation of the skin confined to the epidermis, the dermal-epidermal junction is not damaged
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Ulcer
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a defect of the skin extending into the dermis or deeper
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Excoriation
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Erosions or ulcerations produced by self-trauma
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Scale
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accumulated fragments of cornified epidermal cells, results from alterend keratinization
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Crusts
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fragments of cornified epidermal cells plus dried resude of serum, blood or pus
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Lichenification
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a thickening of the skin with increased prominence of the normal surface epidermal architecture. Lichenification indicates chronicity and frequently self-trauma
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Scar
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an area of replacement fibrosis of the dermis or the dermis and subcutaneous tissue resulting from a reparative but destructive process
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Fissures
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cracks int he skin secondary to loss of normal adhesion associated with inflammatory processes or loss of hydration
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Alopecia
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an absolute decrease in the number of hairs in a certain area or hairs that are shorter than normal (even though the absoloutel number is wihtin normal limits) giving the impression of hair loss.
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annular distribution
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lesions are distributed in a circular manner
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linear distribution
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lesions are arranged in a line
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grouped distribution
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multiple lesions are arranged in distinct aggregations
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