MILADY 2012 CHAPTER 8

65 terms by GAHLBERG

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SKIN DISEASES AND DISORDERS

Allergic contact dermatitis

an allergy to an ingredient or a chemical, usually caused by repeated skin contact with the chemical.

Anaerobic

cannot survive in the presence of oxygen

Closed comedo

hair follicle is closed and not exposed to the environmnet, sebum remains a white or cream color and comdone appears as a small bump just under the skin surface.

Conjunctivitis

common baterial infection of the eye, extremely contagious

Contact dermatitis

an inflammation of the skin caused by having contact with certain chemicals or substances; many of these substances are used in cosmetology.

Dyschromias

abnormal coloration of the skin that accompany many skin
disorders and systemic disorders.

Extrinsic factors

primarily environmental factors that contribute to aging and the apperance of aging.

Free radicals

unstable molecules that cause biochemical aging, especially wrinkling and sagging to the skin

Hyperpigmentation

darker and normal pigmentation, appearing as dark splotches.

Hypopigmentation

absence of pigment resulting in light or white splotches

Impetigo

contagious baterial skin infection characterized by weeping
lesions.

Intrinsic factors

skin aging factors over which we have little control.

Irritant contact dermatitis

occurs when irritating substances temporarily damage the epidermis.

Nodule

a solid bump larger than .4 inches (1centimeter) that can be easily felt.

Noncomedogenic

product that has been designed and proven not to clog the folicles.

Primary lesions

lesions that are a different color than the color of the skin and /or
lesions that are rasied above the surface of the skin.

Retention hyperkeratosis

the hereditary tendency for acne prone skin to retain dead cells in the folicles forming an obstruction that clogs folicles and exacerbateds imflammatory acne leisions such as papules and pustules.

Sebaceous cyst

a large protruding pocket-like lesion filled with sebum, ---- are frequently seen on the scalp and the back. Should be removed by dermatologist surgically.

Secondary skin lesions

characterized by piles of material on the skin surface such as
a crust or scab or depressions in the skin surface such as an ulcer.

Sensitization

allergic reaction created by repeated exposure to a chemical or a substance.

Albinism

congenital hypopigmentation or absence of melanin pigment of the body including the skin, hair and eyes.

Anhidrosis

deficiency in the prespiration, often a result of fever or certain skin diseases

Basal cell carcinoma

most common and least severe type of skin cancer- often characterized by light or pearly nodules

Bromhidrosis

foul-smelling perspiration usually noticeable in the arm pits or the feet that is caused by bacteria.

Bulla

large blister containing a watery fluid; simillar to a vesicle but larger.

Chloasma

condition characterized by hyperpigmentation on the skin in spots that are not elevated (liver spots)

Crust

dead cells that form over a would or blemish while it is healing;
an accumulation of sebum and pus sometimes mixed with epidermal material.

Cyst

closed, abnormmally developed sac that contain fluid, pus,
semifluid or morbid matter above or below the skin.

Dermatitis

inflammatory condition of the skin

Eczema

an inflammatory uncomfortable and often chronic disease of the skin, characterized by moderate to severe inflammation, scaling,and sometimes severe itching.

Excoriation

skin sore or abrasion produced by scratching or scraping

Fissure

a crack in the skin that penetrates the dermis. Examples are severly cracked and /or chapped hands or lips

Herpes simplex

recurring viral infection that often presents as a fever blister or cold sore.

Hyperhidrosis

excessive sweating caused by heat or general body weakness.

Hypertrophy

abnormal growth of the skin.

Keloid

thick scar resulting from excessive growth of fibrous tissue.

Keratoma

acquired superficial thickened patch of epidermis. A callus is a
---- caused by contiued repeated pressure of friction on any part of the skin especially the hands and feet.

Lentigines

technical term for freckles; small yellow colored to brown colored spots on the skin exposed to sunlight and air.

Lesion

mark on the skin, may indicated an injury or damage that changes the structure of tissues or organs.

Leukoderma

skin disorder characterized by light abnormal patches(hypopigmentation) caused by a burn or congenital disease that destroys the pigment producing cells.

Macule

flat spots or discoloration on the skin, such as a freckle or a red
spot left after a pimple has healed.

Malignant melanoma

most serious form of skin cancer; often characterized by black or dark brown patches on the skin that may uneven in texture, jagged or raised.

Milia

benign keratin-filled cysts that can appear just under the epidermis and have no visible opening.

Miliaria rubra

an acute inflammatory disorder of the sweat glands, characterized by the eruption of small red vesicles and accompanied by burning itching skin.(prickly heat)

Mole

small brownish spot or blemish on the skin ranging in color from pale tan to brown or bluish black.

Nevus

small or large malformation of the skin due to abnormal pigmentation or dilated capillaries.(birthmark)

Psoriasis

skin disease characterized by red patches cover with silver-white scales; usually found on the scalp, elbows, knees, chest and lower back

Rosacea

chronic condition that appears primarly on the checks and nose and is characterized by flushing (redness) telangiectasis(distended or dialted surface blood vessels) and in some cases the formation of papules and pustules.

Scale

any thin dry or oily plate of epidermal flakes. An example is abnormal or excessive dandruff.

Scar

a lightly raised mark on the skin formed after an injury or lesion of the skin has healed. (cicatrix)

Seborrheic dermatitis

skin condition caused by an inflammation of the sebaceous glands; it is often characterized by redness, dry or oily scaling crusting and/or itchiness.

Skin tag

a small brown colored or flesh colored outgrowth of the skin

Squamous cell carcinoma

type of skin cancer more serious than basal cell carcinoma; often characterized by scaly red papules or nodules.

Stain

abnormal brown colored or wine colored skin discoloration with a circular and/or irregular shape.

Tan

change in pigmentation of the skin caused by exposure to the sun or ultraviolet light.

Telangiectasis

distended or dilated surface blood vessels

Tubercle

abnormal rounded solid lump above within or under the skin
larger than a papule.

Tumor

an abnormal mass varying in size shape and color.

Ulcer

open lesion on the skin or mucous membrane of the body accompanied by pus and loss of skin depth and possibly weeping fluids and pus.

Verruca

hypertrophy of the papillae and epidermis.(wart)

Vesicle

small blister or sac containing clear fluid, lying within or just beneath the epidermis.

Vitiligo

hereditary condition that causes hypopigmented spots and splotches on the skin may be related to thyroid conditions.

Wheal

itchy, swollen lesion that last only a few hours, caused by a blow
or scratch, the bite of an insect, urticaria(skin allergy) or the sting of a nettle. Examples include hive and mosquito bites.

Papule

a small elevation on the skin that contains no fluid but may
develop pus

Pustule

a raised inflamed papule with a white or yellow center containing pus in the top of the lesion referred to as the head of the pimple.

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