Quiz 1 Flashcards
Lesion
a general term to denote a pathologic or traumatic change in tissue.
- not descriptive
Macule
focal area of color change not elevated or depressed in relation to its surroundings; flat
papule
solid, raised lesion less than 5mm in diameter
Nodule
solid, raised lesion greater than 5mm
erythema
red in color; a common but non-specific sign of irritation, injury or inflammation caused by dilatation of superficial blood vessels
erythematous
relating to or marked by erythema
sessile
base is the widest part of an elevated lesion
pedunculated
base of an elevated lesion is narrower than the widest part
papillary
exhibiting numerous surface projections
verrucous
exhibiting a rough, warty surface
erosive
superficial, partial, or total loss of surface epithelium; may arise secondarily from rupture of bulla (blister)
ulcerated
loss of surface epithelium down to the connective tissue, often appears depressed
fissure
narrow, slit-like ulceration or groove
plaque
slightly elevated and generally flat; (homonym of “plaque” which is the soft white bacterial deposit that accumulates on teeth)
petechia(e)
flat, round, pinpoint area(s) of hemorrhage, usually 3mm or less
purpura
hemorrhage into the skin, larger than petechia, but less than 1cm
ecchymosis
flat area of hemorrhage larger than 1cm; bruise
vesicle
fluid-filled, elevated, superficial, 5mm or less in diameter