Integumentary Flashcards
Vesicles
Primary lesion Small, blister-like raised area Contain serous fluid Up to 1cm in diameter Ex. : poison ivy, shingles, chickenpox
Papule
Primary Lesions •palpable •solid raised lesion •<1 cm in diameter due to superficial thickening in the epidermis •ex. : ringworm, wart, mole
Macule
Primary lesions Flat Non palpable change in skin color Different sizes, shapes, color Usually <1cm Ex. : rubella, scarlet fever, freckles
Nodule
Primary lesion
Solid
Elevated lesion that is larger and deeper than a papule
Ex. : fibroma, intradermal nevi
Bulla
Fluid-filled vesicles or blister
>1cm
Ex. : burns, contact dermatitis
Pustule
Primary lesion
Small elevation of skin or vesicle
Bulla that contains lymph or pus
Ex. : impetigo, scabies , acne
Wheal
Primary lesion Round Transient elevation of the skin caused by derma edema and surrounding capillary dilatation White in center Red in periphery Ex. : hives, insect bites
Plaque
Primary lesions Patch or solid Raised lesion on the skin or mucous membrane >1cm in diameter Ex. : psoriasis
Cyst
Primary lesion
Closed sac or pouch
Consists of semisolid, solid, or liquid material
Ex. : sebaceous cyst
Scale
Secondary lesion
Dry exfoliation of dead epidermis
Possible inflammatory change effect
Ex. : very dry skin, cradle cap, psoriasis
Crust
Secondary lesion
Scab
Formed by dry serum, pus, blood
Ex. : infected dermatitis, impetigo
Excoriation
Secondary lesion
Traumatized abrasions of the epidermis
Linear scratch marks
Ex. : scabies, dermatitis, burns
Fissure
Secondary lesions Slit or cracklike sore Extends into dermis Usually due to continuous inflammation and drying Ex. : athletes foot, anal fissure
Ulcer
Secondary lesion
Open sore
Lesion that extends to dermis
Ex. : pressure sores
Lichenification
Secondary lesion
Thickening and hardening of skin
Cause by continued irritation such as intense scratching
