Skin Lesions Flashcards
injury caused by scraping that results in the removal of superficial layers of skin
abrasion
painful area of tissue that contains a collection of pus; usually resulting from an infection
abscess
fluid filled blister usually greater than 1 cm in diameter; large vesicle
bulla
a scar
cicatrix
dilated hair follicle which contains a build-up of sebum and keratin; blackhead
comedo
injury that causes discoloration and swelling, but does not break the skin; bruise
contusion
layer often formed by dried pus or serum; scab
crust
abnormal, closed sac that contains fluid
cyst
ulcer that appears in pressure areas of the skin resulting from poor circulation; pressure ulcer; bedsore
decubitus ulcer
purplish discoloration caused by the leaking of blood from a ruptured blood vessel
ecchymosis
destruction of tissue from being worn away by friction or pressure
erosion
deep furrow or slit in the skin
fissure
localized infection originating deep in a hair follicle; boil
furuncle
localized formation of hardened areas on the skin
induration
thick overgrowth of scar tissue often occurring after a burn injury
keloid
abnormal change in tissue resulting from injury or disease
lesion
patch of skin that is discolored but not elevated; freckle
macule
small, pearly elevations on the skin resulting from keratin being trapped in an oil gland by epithelial tissue; whitehead
milia
highly pigmented area of skin tissue that may be flat or raised that is usually present at birth; mole; birthmark
nevus
small, abnormal mass that is solid and palpable
nodule
small, solid skin elevation; pimple
papule
pinpoint purplish discoloration caused by a break in a blood vessel; small ecchymosis
petechia
scaly, hardened, and localized patch of skin that is usually raised
plaque
lesion present of the onset of a disease
primary lesion
reddish-purple discoloration resulting from hemorrhage into the skin
purpura
small, superficial, and circumscribed elevation of the skin that contains pus
pustule
small and thin plate of epithelial tissue shed from the skin
scale
mark left on the skin from fibrous tissue replacing injured tissue
scar
lesion resulting from changes over the course of time caused by disease progression, treatment, or other external factors
secondary lesion
lesions formed by small, dilated blood vessels; spider veins
telangiectasis
lesion that has eroded through the skin or a mucous membrane resulting in a loss of surface tissue
ulcer
skin eruptions usually resulting from a hypersensitivity to food, drug, infection, or injury; hives
urticaria
small, flesh-colored skin elevation resulting from a virus; wart
verruca
small elevation of the epidermis that encloses watery liquid; blister
vesicle
suddenly formed, itchy elevation that is usually composed of a white center surrounded by a red perimeter; welt
wheal
