Skin Lesions Flashcards
circumscribed change of color on skin, no elevation or depression not palpable, less than 0.5cm
Macule
Primary lesion
circumscribed change of color on skin, no elevation or depression not palpable, >0.5cm diam
Patch
Primary lesion
Solid elevated circumscribed lesion, less than 0.5cm
Papule
Primary lesion
Solid elevated lesion, >0.5cm diam and deeper
Nodule
Primary lesion
Circumscribed, elevated, superficial, solid lesions, >0.5cm in diam but usually >2cm
ex. psorasis
Plaque
Primary lesion
Circumscribed elevated lesion which contains free fluid, less than 0.5cm
Vesicle
Primary lesion
Circumscribed elevated lesion which contains free fluid
> 1 cm diam
ex. burns, poison ivy
Bulla
Primary lesion
Hive: rounded or flat top elevated lesion formed by dermal edema, size vary
ex. Inscet bite
Wheal
Primary lesion
Elevated, superficial lesion filled with purulent fluid (pus)
ex. Acne
Pustule
Primary lesion
lined cavity filled with liquid or semi-solid liquid
Cyst
Primary lesion
linear crack or break from the epidermis to the dermis, moist or dry
ex. athletes foot
Fissure
Secondary lesion
Abnormal formation of connective tissue that replaces normal skin
ex. healed wound/incision
Scar
Secondary lesion
Excess, dead epidermal cells produced by abnormal keratinization and shedding
ex. flaking of skin caused of sunburn or reaction to drugs
Scale
Secondary lesion
loss of epidermis, extending to dermis, crater-like, irregular shape
ex. pressure ulcer
Ulcer
Secondary lesion
Exaggerated cutaneous reaction pattern to injury and inflammation, hypertrophied scar beyond wound marigin
Keloid
Secondary lesion
