chapter 12 Flashcards
A small bump that itches and can appear as a symptom of an allergic reaction; a welt
wheal
A skin condition resulting from the destruction of the melanocytes due to unknown causes and causing irregular patches of white skin.
vitiligo
Small, hard skin lesions caused by the human papillomavirus; also known as wart
verrucae
Itchy wheals caused by an allergic reaction; also known as hives.
urticaria
A fungal infection of the skin, hair, or nails; also known as ringworm
tinea
An autoimmune disorder characterized by a red, scaly rash on the face and upper trunk
systemic lupus erythematosus
A malignant tumor of the scaly squamous cells of the epithelium; however, it can quickly spread to other body systems
squamous cell carcinoma
Overactivity of the sebaceous glands that results in the production of an excessive amount of sebum
seborrhea
An autoimmune disorder in which the connective tissues become thickened and hardened
scleroderma
A skin infection caused by an infestation of itch mites that cause small, itchy bumps and blisters by burrowing into the top layer of human skin to lay their eggs
scabies
A chronic condition of unknown cause, characterized by tiny red pimples and broken blood vessels.
rosacea
The surgical removal of excess skin and fat from the face for the elimination of wrinkles; also known as a facelift
rhytidectomy
producing or containing pus
purulent
The appearance of multiple purple discolorations on the skin caused by bleeding underneath the skin
purpura
A common skin disorder characterized by flare-ups in which red papules covered with silvery scales occur on the elbows, knees, scalp, back, or buttocks
psoriasis
Itching associated with most forms of dermatitis
pruritis
Small pinpoint hemorrhages less than 2 mm in diameter; singular, petechia
petechiae
An infestation with lice.
pediculitis
An acute or chronic infection of the skin fold around a nail
paronychia
A small, raised, red lesion, such as an insect bite, that is less than 0.5 cm in diameter
papule
A benign, superficial, wartlike growth on the epithelial tissue or elsewhere in the body, such as in the bladder
papilloma
A fungal infection of the nail
onychomycosis
Ingrown toenail in which the edges of a toenail curve inward and cut into the skin
onychocryptosis
A severe infection caused by Group A strepbacteria that enters the body through a wound. Also known as flesh eating bacteria
necrotizing fasciitis
A type of skin cancer that occurs in the melanocytes
malignant melanoma
A discolored, flat spot, such as a freckle, that is less than 1 cm in diameter
macule
A benign, slow-growing fatty tumor located between the skin and the muscle layer
lipoma
A chronic abnormal condition, usually in women, that is characterized by the accumulation of fat and fluid in the tissues just under the skin of the hips and legs
lipedema
A malformation of the nails in which the outer surface is concave or scooped out like the bowl of a spoon; also known as spoon nail
koilonychia
Any skin growth, such as a wart or callus, in which there is overgrowth and thickening of the skin
keratosis
An abnormally raised or thickened scar that expands beyond the boundaries of the original incision
keloid
A highly contagious bacterial skin infection characterized by isolated pustules that become crusted and rupture
impetigo
A group of hereditary disorders characterized by dry, thickened, scaly skin
ichthyosis
Excessive bodily and facial hair in women, usually occurring in a male pattern.
hirsutism
A swelling of clotted blood trapped in the tissues.
hematoma
A small knotlike swelling of granulation tissue in the epidermis
granuloma
Large, tender, swollen areas caused by a staphylococcal infection around hair follicles or sebaceous glands; also known as boils
furuncles
Inflammation of the hair follicles that is especially common on the limbs and in the beard area on men
folliculitis
A condition in which there is widespread scaling of the skin, often with pruritus, erythroderma, and hair loss
exfoliative dermatitis
Refers to a widespread rash, usually in children
exanthem
Abnormal redness of the entire skin surface
erythroderma
Redness of the skin due to capillary dilation
erythema
A form of persistent or recurring dermatitis characterized by redness, itching, and dryness with possible blistering, cracking, oozing, or bleeding
eczema
A large, irregular area of purplish discoloration due to bleeding under the skin
ecchymosis
Atypical moles that may develop into skin cancer
dysplastic nevi
Profuse, but not necessarily excessive, sweating
diaphoresis
Inflammation of the skin
dermatitis
The removal of dirt, foreign objects, damaged tissue, and cellular debris from a wound to prevent infection and promote healing
debridement
A noninfected lesion formed by the buildup of sebum and keratin in a hair follicle; also known as a blackhead
comedo
A normal scar resulting from the healing of a wound
cicatrix
A pigmentation disorder characterized by brownish spots on the face; also known as melasma or the mask of pregnancy
cholasma
An acute, rapidly spreading infection within the connective tissues
cellulitis
A cluster of connected furuncles (boils)
carbuncle
A soft, raised, pink or red vascular birthmark
capillary hemangioma
A large blister that is usually more than 0.5 cm in diameter
bulla
Surgical reduction of the upper and lower eyelids by removing sagging skin; also known as a lid lift
blepharoplasty
The partial or complete loss of hair, most commonly on the scalp; also known as baldness
alopecia
A genetic condition characterized by a deficiency or absence of pigment in the skin, hair, and irises due to a missing enzyme necessary for the production of melanin
albinism
A precancerous skin lesion that occurs on sun-damaged skin
actinic keratosis
