Integumentary System Primary Lesions Flashcards
Papule
Elevated lesion
Solid, elevated lesion less than 1 cm in diameter that may be the same color as the skin or pigmented (exa: nevus wart, pimple, ringworm, psoriasis, eczema
Macule
Flat pigmented, circumscribed area less than 1 cm in diameter (exa: freckle, flat mole, or rash that occurs in rubella)
Vesicle
Elevated lesion (fluid filled) Elevated, circumscribed, fluid filled lesion less than 0.5 cm in diameter (exa: poison ivy, shingles)
Nodule
Elevated lesion
Palpable, circumscribed lesion; larger and deeper than a papule (0.6 to 2 cm in diameter); extends into the dermal area (exa: intradermal nevus, benign or malignant tumor)
Pustule
Elevated lesion (fluid filled) Small, raised, circumscribed lesion that contains pus; usually less than 1 cm in diameter (exa: acne, furuncle, pustular psoriasis, scabies)
Tumor
Solid, elevated lesion larger than 2 cm in diameter that extends into the dermal and subcutaneous layers. (exa: lipoma, steatoma, dermatofibroma, hemangioma)
Bulla
Elevated lesion (fluid filled) A vesicle or blister larger than 1 cm in diameter (exa: second degree burns, severe poison oak)
Wheal
elevated lesion
Elevated, firm, rounded lesion with localized skin edema that varies in size, shape, and color; paler in the center than its surrounding edges; accompanied by itching (exa: hives, insect bites)
Excoriations
Depressed lesion (secondary) Linear scratch marks or traumatized abrasions or the epidermis (exa: scratches, abrasions, chemical or thermal burns)
Fissure
Depressed (Secondary)
Small slit or crack like sore that extends into the dermal layer; could be caused by continuous inflammation and drying
Ulcer
Depressed lesion (secondary) An open sore or lesion that extends to the dermis and usually heals with scarring (exa: pressure sore, basal cell carcinoma)