Dermatologic Terminology
Terms
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- Macule: type of lesion, size, color, example
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Primary lesion
Circumscribed, flat lesion up to 1 cm in diameter
brown, blue, black or white
ex: freckle - Patch
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-Primary lesion
-circumbscribed, flat lesion
greater than 1 cm in diameter - Papule
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-Primary lesion
-Elevated, solid lesion
-Up to 5 mm in diameter
-Variable color
Ex: wart - Plaque
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-primary lesion
-elevated, solid lesion
greater than 5 mm in diamter
-may be a confluence of papules - Nodule
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-Primary lesion
-elevated solid lesion located deeper than a plaque
-skin can be visibly moved over it - Tumor
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-Primary lesion
-large nodule - Wheal
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-Primary lesion
-edematous plaque caused by fluid infiltration of the dermis
-ex: hives - Vesicle
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-primary lesion
-circumscribed collection of free fluid
-up to 5 mm in diameter
-ex: small blister - Bulla
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-priamry lesion
-circumscribed collection of free fluid
-greater than 5 mm in diameter - Pustule
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-primary lesion
-circumscribed collection of purulent material
-made of leukocytes and fluid - Erosion
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secondary lesion
focal loss of epidermis that usually won't scar
ex: ruptured blister