Ch. 16: Skin Flashcards
crust
collection of dried serum and cellular debris
cyst
thick-walled, closed sac or pouch containing fluid or semisolid material
erosion
wearing away or loss of epidermis
fissure
groove or crack-like sore
macule
flat, pigmented lesion measuring less than 1 cm in diameter
nodule
solid, round or oval elevated lesion 1 cm or more in diameter
papule
small (less than 1 cm in diameter), solid elevation of the skin
pustule
papule containing pus
ulcer
open sore on the skin or mucous membranes (deeperr erosion)
vesicle
small collection of clear fluid (serum); blister
wheal
smooth, edematous (swollen) papule or plaque that is centrally redder than the surrounding skin
alopecia
absence of hair from areas where it normally grows
ecchymosis
bluish-purplish mark (bruise) on the skin
petechia
small, pinpoint hemorrhage
pruritus
itching
acne
chronic papular and pustular eruption of the skin with increase production of serum
burns
injury to tissues caused by heat contact
cellulitis
diffuse, acute infection of the skin marked by local heat, redness, pain, and swelling