03 - secondary lesions Flashcards
epidermal collarettes
usually indicative of what?
circular rim of loosely attached keratin (scale)
staphylococcal infection
circular rim of loosely attached keratin (scale)
epidermal collarettes
scar
fibrous tissue that has replaced damaged dermal or SC tissue
fibrous tissue that has replaced damaged dermal or SC tissue
scar
excoriation
erosion/ulcer form scratching/biting
erosion/ulcer form scratching/biting
excoriation
erosion
will it scar?
interruption of epidermis -> doesn’t penetrate basement membrane
no
interruption of epidermis -> doesn’t penetrate basement membrane
erosion
ulcer
will it scar?
interruption of epidermis -> exposes dermis (thru basemet)
yep
interruption of epidermis -> exposes dermis (thru basemet)
ulcer
lichenification
cause?
thickened, firm skin
constant friction/inflammation
thickened, firm skin
lichenification
hyperkeratosis
^ thickenss of stratum corneum
^ thickenss of stratum corneum
hyperkeratosis
stratum corneum = ?
outermost layer of skin, consists of dead cells
fissure
caused by?
linear defect into the epidermis or dermis
disease or injury
linear defect into the epidermis or dermis
fissure
callus
cause?
thickened hyperkeratotic lichenified area over bony prominences
pressure or low grade friction
thickened hyperkeratotic lichenified area over bony prominences
callus
