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        | cells covering external and internal surfaces of the body |  | 
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        | thin, cellular outer layer of the skin |  | 
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        | flat, scale-like epithelial cells comprising the outermost layers of the epidermis |  | 
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        | deepest region of the epidermis |  | 
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        | a cell found in the basal layer that gives color to the skin |  | 
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        | dark brown to black pigment contained in melanocytes |  | 
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        | dense, fibrous connective tissue layer of the skin |  | 
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        | oily substance secreted by the sebaceous glands |  | 
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        | connective and adipose tissue layer just under the dermis |  | 
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        | protein substance found in skin and connective tissue |  | 
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        | hard protein material found in the epidermis, hair and nails |  | 
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        | an area of pathologically altered tissue |  | 
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        | a flat, discolored spot on the s kin up to 1 cm across |  | 
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        | lesions that result in changes in primary lesions |  | 
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        | to gnaw away; loss of superficial epidermis leaving an area of moisture but no bleeding |  | 
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        | an open sore on the skin or mucous membrane that can bleed and scar and is sometimes accompanied by infections |  | 
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        | a linear crack in the skin |  | 
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        | a mark left by the healing of a sore or wound showing the replacement of destroyed tissue by fibrous tissue |  | 
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        | an abnormal overgrowth of scar tissue that is thick and irregular |  | 
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        | lesions of a blood vessel |  | 
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        | lesions of a blood vessel |  | 
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        | purpura; lesions as a result of hemorrhages into the skin |  | 
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        | spot; a reddish-brown, minute hemorrhagic spot on the skin that indicates a bleeding tendency |  | 
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        | bruse; a black and blue mark-large purpura |  | 
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        | skin tumors arising from the epidermis |  | 
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        | a congenital malformation on the skin that can be epidermal or vascular-also a mole |  | 
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        | a mole with precancerous changes |  | 
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        | an epidermal tumor caused by a papilloma virus-also called a wart |  | 
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        | a mole with precancerous changes |  | 
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        | an epidermal tumor caused by a papilloma virus-also called a wart |  | 
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        | a plug of sebum within the opening of a hair follicle |  | 
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        | loss of melanin pigment in the skin |  | 
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        | areas of skin lacking color due to deficient amounts of melanin |  | 
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        | darkened areas of skin caused by excessive amounts of melanin |  | 
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        | production of purulent matter |  | 
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        | inflammation of the sebaceous glands and hair follicles of the skin evidenced by comedones, pustules, or nodules on the skin |  | 
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        | a herditary condition characterized by a partial or total lack of melanin pigment |  | 
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        | an acute inflammation of subcutaneous tissue resulting from a bacterial invasion through a break in the skin |  | 
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        | an inflammation of the skin characterized by redness pruritus |  | 
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        | chronic skin inflammation characterized by appearance of inflamed, swollen papules |  | 
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        | an inflammation of the skin resulting from contact with substance to which one is allergic |  | 
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        | redness of the skin covered by a yellow, oily, itchy scale most commonly at the hairline, forehead |  | 
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        | eruption of the skin caused by a viral disease |  | 
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        | a skin infection consisting of clusters of furuncles |  | 
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        | a localized collection of pus in a cavity formed by the inflammation of surrounding tissues that heals when drained or excised |  | 
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        | an eating sore; death of tissue associated with a loss of blood supply resulting from trauma or inflammatory or infectious process |  | 
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        | herpes simplex virus type 1 |  | Definition 
 
        | transient viral vesicles that infect the facial area, especially the mouth and nose |  | 
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        | herpes simplex virus type 2 |  | Definition 
 
        | sexualy transmitted ulcer-like lesions of the genital and anorectal skin and mucosa |  | 
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        | a viral disease affecting the peripheral nerves characterized by painful blisters that spread over the skin following the affected nerves |  | 
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        | a skin condition caused by a gene defect that results in dry-thick, scaly skin |  | 
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        | highly contagious, bacterial skin inflammation marked by pustules that rupture and become crusted |  | 
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        | thickened areas of epidermis |  | 
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        | thickening of skin caused by excessive exposure to sunlight |  | 
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        | benign wart-like lesionsss |  | 
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        | chronic autoimmune disease characterized by inflammation of various parts of the body |  | 
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        | systemic lupus erythematosus |  | Definition 
 
        | a  more severe form of lupus involving the skin, joints, and often the vital organs |  | 
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        | malignant cutaneous neoplasm |  | Definition 
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        | a malignant tumor of squamous epithelium |  | 
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        | inflammation of the fingernail or toenail |  | 
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        | inflammation of the nail fold |  | 
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        | infestation with lice that causes itching and dermatitis |  | 
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        | lice that generally infect the pubic region |  | 
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        | an itching; recurrent skin disease marked by silver-gray scales covering red patches on the skin |  | 
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        | contagious disease caused by a parasite (mite) that invades the skin, causing an intense itch-most often found at articulations between the fingers or toes, elbow, etc |  | 
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        | a skin condition marked by the hypersecretion of sebum from the sebaceous glands |  | 
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        | a group of fungal skin diseases identified by the body part that is affected |  | 
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        | a condition caused by the destruction of melanin that results in the appearance of white patches on the skin, commonly the face, hands, legs and genital areas |  | 
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        | removal of a small piece of tissue for microscopic pathological examination |  | 
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        | a surgical method involving cutting a thin piece of tissue from a frozen specimen for immediate pathologica examination |  | 
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        | destruction of tissue by freezing |  | 
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        | surgical removal of frozen epidermis using wire brushes and emery papers to remove scars |  | 
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        | removal of dead tissue from a wound or burn site to promote healing and prevent infection |  | 
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        | to clean; scraping of a wound using a spoon-like cutting instrument called a curette |  | 
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        | electricalsurgical procedures |  | Definition 
 
        | use of electric currents to destroy tissue |  | 
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        | a technique used to excise tumors of the skin by removing fresh tissue layer by layer until a tumor-free plane is reached |  | 
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        | transfer of skin from one body site to another to replace skin lost through burns or injury |  | 
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        | use of sclerosing agents in treating diseases |  | 
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        | a drug that relieves itching |  | 
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        | an agent that inhibits the growth of infectious microorganisms |  | 
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