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31 Cards in this Set

  • Front
  • Back
lesion
an area of pathological altered tissue
primary lesions
lesions arising from previously normal skin
macule
flat, discolored spot on skin up to 1 cm across
(e.g. freckle)
patch
flat, discolored area on skin larger than 1 cm
(e.g. vitiligo)
papule
solid mass on skin up to 0.5 cm in diameter
(e.g. mole)
plaque
solid mass greater than 1 cm in diameter, limited to surface of skin
nodule
solid mass greater than 1 cm, extends deeper into the epidermis
tumor
solid mass larger than 1-2 cm
wheal
area of localized skin edema
(e.g. hive)
vesicle
little bladder;
elevated fluid-filled sac (blister)
bulla
blister larger than 0.5 cm
(e.g. second-degree burn)
pustule
pus-filled sac
(e.g. pimple)
secondary lesions
lesions that result in changes in primary lesions
erosion
to gnaw away;
loss of superficial epidermis leaving area of moisture but no bleeding
ulcer
open sore on skin or mucous membrane that can bleed and scar
excoriation
scratch mark
fissure
linear crack in the skin
scale
think flake of exfoliated epidermis
(e.g. dandruff)
crust
dried residue of serum, pus, blood on skin
(e.g. in impetigo)
cicatrix of skin
scar;
mark left by the healing of a sore or wound showing replacement of destroyed tissue by fibrous tissue
keloid
abnormal overgrowth of scar tissue that is thick and irregular
vascular lesions
lesions of a blood vessel
cherry angioma
small, round, brigh-red blood vessel tumor, often on trunk of eldery
telangiectasia
spider angioma
tiny, red blood vessel lesion formed by dilating group of blood vessles radiating from a central arteriole most commonly seen on face, neck, or chest
purpuric lesions
purpura: lesions as a result of hemorrahges into the skin
petechia
spot; small purpura;
reddish-brown, minute hemorrhagic spot on skin that indicates a bleeding tendency
ecchymosis
bruise; large purpura;
black and blue mark
epidermal tumors
skin tumors arising from epidermis
nevus
mole;
congenital malformation o skin
dysplastic nevus
mole with precancerous changes
verruca
wart;
epidermal tumor caused by a papilloma virus