Description of Primary & Secondary Lesions Flashcards
Characteristics of a Macule
- primary
- flat
- <1cm
- color change only
- color can vary
What type of lesion is this
Macule
Patch
- primary
- flat
- > 1cm
- color change only
what type of lesion is this
patch
Characteristics of a Papule
- primary
- raised (maybe depressed center
- superficial (epi only)
- <1cm
- solid
What type of lesion is this
papule
Plaque
- primary
- raised or depressed
- > 1cm
- solid
- well-defined
- can form from multiple coalescing papules
what type of lesion is this
plaque
Nodule
- primary
- raised
- > 1cm
- solid or fluid filled
- larger/deeper than papule (derm or subQ)
What type of lesion is this
nodule
Vesicle
- primary
- raised
- <1cm
- fluid filled (clear, serous, hemorrhagic)
- dome shaped or flaccid
- thin roof
- can come from cleavage at superficial level
what type of lesion is this
vesicle
Bulla
- primary
- raised
- > 1cm
- fluid filled
what type of lesion is this
bulla
Pustule
- primary
- raised
- <1cm
- purulent
- superficial
what type of lesion is this
pustule
Erosion
- primary and secondary
- depressed
- any size
- no contents
- loss of epi tissue, no scarring
what type of lesion is this
erosion
Ulceration
- primary or secondary
- depressed
- any size
- no contents
- loss of epi and derm
- scars
what type of lesion is this
ulceration
Wheal
- primary
- irregular
- transient
- from cutaneous edema
- red to pale color
- itchy
what type of lesion is this
wheal
What type of lesion is this
ecchymosis
Petechiae
- primary
- 1-3mm
- round and flat
- doesn’t blanch
what type of lesion is this
petechiae
purpura
- deep red/purple
- large
- irregular
- palpable
- doesn’t blanch
what type of lesion is this
purpura
Scale
- secondary
- accumulation in stratum corneum
- flakes can be any size, adherent/loose
what type of lesion is this
scale
Crust
- secondary
- dried exudate
- serous crust = yellow
- hemorrhagic crust = red
What type of lesion is this
crust
Lichenification
- secondary
- skin thickening
- accentuated fold marks
- chronic scratching/rubbing
what kind of lesion is this
lichenification
Excoriation
- secondary
- linear
- may be crusty
what kind of lesion is this
excoriation
Scar
- secondary
- fibrous tissue
- eryth/hypo/hyper
- hair follicles may be destroyed
What kind of lesion is this
scar
Atrophy
- secondary
- loss of substance/epi/derm/subQ
what kind of lesion is this
atrophy
Fissure
- secondary
- excessive tension/decreased elasticity
what kind of lesion is this
fissure
What shape is this
reticular (net like)
what shape is this
annular
what shape is this
nummular
what shape is this
serpiginous
demarcation
is the edge sharply defined or does it blend
Is this well or poorly demarcated?
Poorly
What does verrucous mean
warty
what does keratotic mean
hard
