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
Scar
Secondary lesion
Mark left in the skin
From fibrotic changes following healing of a wound or surgical incision
Discrete
Pattern
Individual lesions are separate and distinct (scattered)
Grouped
Pattern
Lesions are clustered together
Confluent
Pattern
Lesions merged so that discrete lesions are not visible or palpable
Linear
Pattern
Lesions from a line
Annular
Pattern
Circular
Lesions are arranged in a single ring or circle
Polycyclic
Pattern
Lesions are arranged in concentric circles
Arciform
Patterns
Lesions form arcs or curves
Reticular
Pattern
Lesions from a mesh like network
