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7 Cards in this Set
- Front
- Back
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callus
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Increased growth of cells in the keratin layer of the epidermis caused by pressure or friction.
Usually formed on the feet or hands Example: corn: a type of callus that develops a hard core (a whitish, cone-shaped central kernel). |
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keloid
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Excess hypertrophied, thickened scar developing after trauma or surgical incision.
They result from excessive collagen formation in the skin during connective tissue repair. They extend beyond the boundaries of the original injury. |
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cicatrix
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a normal scar left by a healed wound
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keratosis
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Thickened and rough lesion of the epidermis: associated with aging or skin damage.
-Actinic keratosis: caused by long-term ultraviolet light exposure and is a precancerous lesion that can evolve into squamous cell carcinoma. -Seborrheic keratosis: a benign lesion that results from overgrowth of the upper epidermis and is dark in color |
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leukoplakia
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White, thickened patches on mucous membrane tissue of the tongue or cheek (evolves to squamous cell carcinoma)
One type is a precancerous lesion that is common in smokers and may be caused by chronic inflammation. |
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nevus, nevi
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Pigmented lesion of the skin
(Moles). Dysplastic nevi: moles that have atypical cells and may progress to form a type of skin cancer called melanoma. |
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verruca, verrucae
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Epidermal growth (wart) caused by a virus.
Verruca vulgaris: common wart Plantar warts: occur on soles of the feet, juvenile warts occur on the hands and face of children, and venereal warts occur on genitals and around the anus. Are removed with acids, electrocautery, or freezing with liquid nitrogen. |
