secondary skin lesions Flashcards
lichenification
A distinctive thickening of the skin that is characterized by accentuated skin-fold markings.
scale
Excessive accumlation of stratum corneum.
crust
Dried exudate of body fluids that may be either yellow (i.e., serous crust) or red (i.e., hemorrhagic crust).
ersion
loss of epidermis without an associated loss of dermis
ulcer
Loss of epidermis and at least a protion of the underlying dermis.
excoriation
Linear, angular erosions that may be covered by crust and are caused by scratching.
atrophy
An acquired loss of substance. In the skin, this may appear as a depression in intact epidermis (i.e., loss of dermal or subcutaneous tissue) or as sites of shiny, delicate, wrinkled lesions (i.e., epidermal atrophy).
scar
A cahnge in the skin secondary to trauma or inflammation. Sites may be erythematous, hypopigmented, or hyperpigmented depending on their age or charcter. Sites on hair-bearing, areas may be characterized by destruction of hair follicles.