skin identification Flashcards
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macule
flat, distinct, discolored area of skin less than 1 cm wide that does not involve any change in the thickness or texture of the skin
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Patches
spots of skin that are lighter or darker than your regular skin color. Patches may also have a red, purple, or blue tint. Patches may be confused with macules, but macules are very small and are usually less than 1 centimeter wide. Birthmarks, vitiligo, and hemophilia are all examples of patches.
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papule
solid raised <1cm lesion that has distinct borders
examples: warts, moles, eczema
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plaque
>1 cm solid raised flat-topped lesion
example: psoriasis
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nodule
>1cm solid raised non-flat-topped lesions
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vesicle
<1cm raise lesion, filled with clear fluid
example: chicken pox, herpes virus
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bulla
larger vesicles; a bubble like cavity filled with fluid/air
examples: simple friction blisters, auto immune disease
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pustule
raised lesion filled with pus
example: acne, folliculitis
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wheal
papule or plaque with erythematous borders and pale center, can be very itchy! tend to resolve in 24-48 hrs (evanescent)
example: hives