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baldness; natural or unnatural deficiency of hair | alopecia |
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a plug of sebum (oil) within the opening of a hair follicle | comedo (pl.comedos, comedones) (Fig. 3-8) |
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a comedo below the skin surface, with a white center (whitehead) | closed comedo |
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a comedo open to the skin surface, with a black center caused by the presence of melanin exposed to air (blackhead) | open comedo |
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appearance of a skin lesion | eruption |
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redness of skin | erythema |
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severe itching | pruritus |
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a general term for skin eruption, most often associated with communicable disease | rash |
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skin color resulting from the presence of melanin | skin pigmentation |
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loss of melanin pigment in the skin | depigmentation |
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areas of skin lacking color because of deficient amounts of melanin | hypopigmentation |
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darkened areas of skin caused by excessive amounts of melanin | hyperpigmentation |
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production of purulent matter (pus) | suppuration |
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hives; an eruption of wheals on the skin accompanied by itching (urtica = stinging nettle) | urticaria (see Fig. 3-3, G) |
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dry skinxeroderma | |