Skin Examination Flashcards
distribution
which areas are affected and which are not
configuration
how the lesions are arranged grouped discrete confluent annular (ring)
morphology
what the lesions look like
Purpura
will not blanche - may be raised due to extravasation (leakage) of blood
petechia
smaller 1-2 mm area of flat purpura
erythema
blanches on pressure, due to vascular dilation
pigmentation
hypo-pigmentation
hyper-pigmentation
flat lesions
level with normal skin i.e. localised colour change
macule = < 1cm
patch = >1cm
raised lesions
can feel above skin surface i.e. localised elevated area
papule = <0.5cm
nodule = >0.5cm
fluid filled raised lesion
vesicle = <0.5cm
bulla =>0.5 cm
cyst
nodule containing semi-solid material
pustule
pus-filled
plaque
raised edge and flatter surface >1cm (if width greater than depth)
wheal
compressible dermal swelling
border features
well-defined/poorly-defined
regular/irregular
scale
accumulated fragments of the keratin layer
crust
dried exudate e.g. serum
lichenified
thickening with increased skin markings
scar
normal tissue replaced with fibrous tissue
fissures
linear split in epidermis
atrophy
loss of epidermis +/- dermis (surface remains intact)
erosion
superficial break in epidermis
ulcer
deeper break into dermis