Primary Skin Lesions

These flashcards cover key vocabulary related to primary skin lesions, including definitions and characteristics.

Macule/Patch

Flat, not detectable with palpation, changes in color; size

Papule/Plaque

Solid, raised lesion with distinct borders; size

Nodule

Raised solid mass with defined borders extending into the dermis; size 0.5-2 cm.

Tumor

Solid mass extending through subcutaneous tissue; may have undefined borders.

Vesicle/Bulla

Circumscribed, raised lesions filled with serous fluid; size

Pustule

Circumscribed, elevated lesion containing pus instead of clear fluid.

Wheal

Irregularly shaped area of edema caused by serous fluid in the dermis.

Burrow

Linear or circular appearance caused by infestation and tunneling of parasitic organisms.

Cyst

Encapsulated fluid-filled or semisolid mass extending into the dermis or subcutaneous tissue.