Primary Skin Lesions Quiz)

Macule—

flat, circumscribed area that is changed in color

Papule—

elevated, firm, circumscribed area

Patch—

flat nonpalpable, irregularly shaped macule >1 cm in diameter

Plaque—

elevated, firm, rough lesion with flat-topped surface >1 cm in diameter

Wheal—

elevated, irregularly shaped area of cutaneous edema; solid, transient; variable diameter

Nodule—

elevated, firm, circumscribed lesion; deeper in dermis than a papule; 1-2 cm in diameter

Tumor—

elevated and solid lesion; may or may not be clearly demarcated; deeper in dermis >2 cm diameter

Vesicle—

elevated circumscribed superficial, not into dermis; filed with serous fluid;

Bulla—

vesicle >1 cm in diameter

Pustule—

elevated, superficial lesion; similar to a vesicle but filled with purulent fluid

Cyst—

elevated, circumscribed, encapsulated lesion; in dermis or subcutaneous layer; filled with liquid or semisolid material

Telangiectasia—

fine, irregular red lines produced by capillary dilation

Scale—

heaped-up keratinized cells; flaky skin; irregular; thick or thin; dry or oily; variation in size

Lichenification—

rough, thickened epidermis secondary to persistent rubbing, itching, or skin irritation; often involves flexor surface or extremity

Keloid—

irregularly, shaped, elevated, progressively enlarging scar; grows beyond the boundaries of the wound; caused by excessive collagen formation during healing

Scar—

thin to thick fibrous tissue that replaces normal skin after injury or laceration to the dermis

Excoriation—

loss of the epidermis; liner hollowed-out crusted area

Fissure—

linear crack or break from the epidermis to the dermis may be moist or dry

Erosion—

loss of part of the epidermis; depressed, moist, glistening; follows rupture of a vesicle or bulla

Ulcer—

loss of epidermis and dermis; concave; varies in size

Crust—

dried serum, blood or purulent exudate; slightly elevated; size varies; brown, red, black, or tan

Atrophy—

thinning of skin surface and loss of skin marking; skin translucent and paper-like