Dermatology Definitions Flashcards
Define Distribution
Where the rash is located
Define Configuration
If there are separate components of a rash, is there a pattern in the way they are positioned?
Define morphology
What do individual components look like?
Define Eruption
Rash
Define Erythematous
Red
Define Pruritis
The sensation of itching
Define Lesion
Any single small area of skin disease
Define Macule
Flat (non-palpable) are f colour change
Define Papule
Small palpable mass <0.5cm, usually dome-shaped
Define Patch
large area of colour change, with smooth surface
Define plaque
Flat topped palpable lesion
Define nodule
Dome-shaped lesion/lump which has enlarged in length, width + depth to a diameter of >0.5cm
Define scale
Visible white loosening of the outermost skin layer
Define crust
Golden deposit on skin surface due to dried plasma
Define weal
Smooth surfaced dermal swellings
Define vesicle
Small (<0.5cm) papules with clear fl
Define pustule
Visible accumulation of pus
Define bulla
Blister >0.5cm
Define erosion
Partial loss of surface epithelium
Define ulcer
Complete loss of surface epithelium
Define excoriation
Break in skin due to scratching
Define lichenification
Thickening of skin w/ incr surface markers due to chronic scratching/rubbing
Define skin failure
Loss of T control, failure t prevent PCT loss of fl, electrolytes and protein –> imbalance