JOEL derm terms Flashcards
circumscribed change in color w/o elevation or depression (not palpable)
macule or patch
macule vs patch
macule is smaller <10mm
patch is >10mm
freckles is an example of?
macules
superficial, elevated solid lesion
<5mm
papule
plateau-like elevation; well defined; large SA compared to height
fundamental or from coalescence of papules
plaque
palpable, solid, round or ellipsoidal lesion
can be hard or soft but not fluctuate
nodule
how does nodule differ from papule
depth and size
diff between ill-defined and well defined
ill defined is deep and can be better felt than seen
what does fluctuate mean
you push on it and there is no fluid
pale red papule or plaque that is rounded or flat topped caused by edema in papillary body of dermis
wheal
how fast does wheal heal
most times in 1-2 days
circumscribed, elevated, superficial cavity containing clear-yellowish or red/black fluid
vesicle or bulla
diff between vesicle and bulla
vesicle is <5mm
bulla is >5mm
circumscribed superficial cavity of the skin that contains PURULENT exudate (white, yellow, green, hemorrhagic)
pustule
serum, blood or purulent exudate dries on skin surface
crust
flakes from thickening of stratum corneum/abnormal keratinization and shedding
scale
defect in epidermis that heals w/o scarring and sharply defined
erosion
erosions is a result of…
always from intraepidermal or subepidermal cleavage (vesicle or bullae)
skin defect that extends into the dermis or deeper and is always secondary & always scars
ulcer
fibrous tissue replacement of tissue defects that can be hypertrophic or atrophic
scar/keloid
long, narrow opening or crack in skin; excessively dry skin; lichenification
fissure
diminution of some or all layers of skin
atrophy
epidermal vs dermal atrophy
epidermal is cigarette paper like wrinkling
dermal is depressed lesions
scale vs crust
scale: thickening of stratum corneum; adherent, white, fine, yellow & greasy, hyperkeratotic
Crust: dried endogenous material; serous, hemorrhagic, honey-colored