Pathology, Basis of Disease-- Skin, Ch. 26
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each of the black spaces below before clicking
on it to display the answer.
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| macule | circumscribed area of any size characterized by its flatness + usually distinguished from surrounding skin by its coloration.
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| papule | elevated, solid area that's 5 mm or less across
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| nodule | elevated, solid area that's greater than 5mm across
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| plaque | elevated, flat-topped area that's usually greater than 5 mm across
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| vesicle | fluis-filled, raised area that's 5 mm or less across
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| bulla | fluid-filled, raised area that's greater than 5 mm across
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| blister | common term used for a vesicle or bulla
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| pustule | discrete, pus-filled, raised area
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| wheal | itchy, transient, elevated area w/ variable blanching and erythema formed as the result of dermal edema
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| scale | dry, platelike excrescense; usually the result of imperfect cornification
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| lichenification | thickened + rough skin characterized by prominent skin markings; usually the result of repeated rubbing in susceptible persons.
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| excoriation | a traumatic lesion characterized by breakage of the epidermis, causing a raw linear area(a deep scratch). Such lesions are often self-induced.
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| onycholysis | loss of integrity of the nail substance.
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