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layer of the skin that consists of several layers of stratified squamous (scalelike) epithelium.
1. Cells are produced in the innermost (basal) layer moving the older cells up toward the surface.
2. Cells that are pushed up flatten, fill with a hard protein called keratin and die
3. Layers of packed dead cells accumlate in the outermost (squamous) layer where they are sloughed off. |
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| Layer of the skin known as the connective tissue layer, contains blood vessels, nerves, and other structures. Collagen fibers make the skin tough and elastic. |
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| below the dermis composed of loose connective tissue and adipose (fatty) tissue. |
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| lesions arising from previously normal skin |
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| lesions that result in changes in primary lesions |
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| flat discolored spot on the skin up to 1 cm across (e.g. freckle) |
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| flat, discolored areas on skin >1 cm across (e.g. vitiligo) |
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| solid mass on the skin up to .5 cm in diameter (e.g. nevus or mole) |
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| a solid mass greater than 1 cm in diameter limited to the surface of the skin |
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| solid mass greater than 1 cm extending deeper into the epidermis |
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| solid mass larger than 1-2 cm |
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| area of localized skin edema (e.g. a hive) |
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| pus filled sac, e.g. a boil |
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| little bladder, elevated fluid filled sac (blister) within or under the epidermis up to 5 cm |
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| a blister larger than 5 cm e.g. a second degree burn |
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| gnawed away; loss of superficial epidermis leaving an area of moisture but no bleeding |
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| open sore on the skin or membranes that can bleed and scar. Sometimes accompanied by infection |
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| dried residue of serum, pus, or blood on the skin (e.g. impetigo) |
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| a thin flake of exfoliated epidermis (e.g. dandruff) |
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| small round bright red blood vessel tumor on the skin often on trunk of elderly |
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| tiny red blood vessel lesions formed by the dialation of a group of blood vessels radiation from a central arteriole, most commonly face neck or chest |
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| lesions resulting from hemmorages in the skin |
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| a bruise, black and blue mark, large purpura |
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| spot, reddish brown minute hemorrhagic spots on the skin that indicate a bleeding tendency |
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| tumors arising from the epidermis |
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| birthmark, congential malformation can be epidermal or vascular - e.g. mole |
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| a wart; epidermal tumor caused by the papilloma virus. |
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| fox mange, baldness natural or unnatural deficiency of hair |
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| a blackhead caused by a plug of sebum within the opening of a hair folicle. |
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| appearance of a skin lesion |
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| general term used for skin eruption, most often associated with a communicable disease. |
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| production of purulent matter (pus) |
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| hives, an eruption of wheals on the skin accelerated by an itch |
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skin color due to presence of melanin
- depigmentation
- hyperpigmentation
- hypopigmentation |
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| inflammation of the sebaceous glands and hair folicles evidenced by comedones (blackheads), pustules, or nodules on the skin |
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| hereditary condition characterized by a partial or total lack of melanin pigment (particularly hair, eyes, and skin) |
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| esanthematous viral disease |
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eruption of the skin caused by a viral disease
1. rubella - reddish german measles
2. rubcola - reddish, 14 day measles
3. varicella - a tiny spot, chicken pox |
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| boil, a painful nodule formed in the skin by an inflammation originating in a hair folicle. Caused by staph. |
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| skin infection consisting of clusters of furuncles |
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| localized collection of pus in a cavity formed by the inflammation of surrounting tissues |
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| an eating sore, death of tissue associated with a loss of blood supply to the area |
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| herpes simplex virus type 1. transmitted virally vesicles that infect the facial area, especially the mouth and nose |
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| herpes simplex virus 2 - sexually transmitted viral vesicles |
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| virual disease affecting the peripheral nerves |
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| highly contagious, bacterial skin inflammation marked by pustules that rupture and become crusted around mouth and nostrils |
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| localized thickening of the skin caused by excessive exposure to sunlight |
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| benign wart-like tumors (on elderly) |
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| malignant tumor of squamous epithelium |
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| malignant tumor of the basal layer of the epidermis - most common type of skin cancer |
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| malignant tumor composed of melanocytes |
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| malignant skin cancer tumor of the walls of blood vessels appearing as painless dark blue spots |
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| contagious disease caused by a parasite (mite) that invades the skin causing an intense itch - typically on fingers, toes, and elbows |
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| infestation of lice that causes itching and dermatitis |
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| itching, chronic recurrent skin disease marked by silver gray scales covering red patching on the skin |
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| skin condition marked by the hypersecretion of sebum from the sebacious glands |
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group of fungual skin diseases identified by the body part affected
- tinea corpus (called ringworm)
- tinea pedis (called athlete's foot) |
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| condition caused by the destruction of melanin that results in the appearance of white patches on the skin |
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removal of a small piece of tissue for microscopic pathologic examination
1. excisional
2. incisional
3. shave |
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| culture and sensitivity (C&S) |
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| technique of isolating and growing colonies of microorganisims to identify a pathogen to determine which drugs might be effective for a cure |
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| destruction of tissue by freezing with an application of an extremely cold chemical (e.g. liquid nitrogen) |
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| removal of dead tissue from a wound or burn site to promote healing and prevent infection |
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| cleaning, scraping a wound using a spoonlike instrument called a curette - used for debridement |
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| incision and drainage (I&D) |
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| incision and drainage of an infected skin lesion |
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| surgery using a laser in various dermatological procedures to remove lesions |
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| instrument heated by electric current (cautery), used to coagulate bleeding areas |
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| a drug that temporarily blocks transmission of nerve conduction to produce a loss of sensations |
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| kills or prevent the growth of fungi |
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| kills or inhibits the growth of microorganisms |
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| blocks the affects of histamine in the body |
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| inhibits the growth of microorganisms |
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