Dermatology Flashcards
what is a macule?
small circumscribed
non-elevated area of skin
colour change
Papule
small circumscribed
palpable elevated in the skin
usually <5mm diameter
Vesicle
elevated skin lesion up to 5mm diameter
contains fluid
pustule
small area of elevated skin
contains pus
crusting
outer layer of solid material formed by drying of exudates or secretions
Bulla
localised collection of fluid in the epidermis
usually >5mm diameter
petechiae
small spots of blood (1-2mm diameter) caused by small haemorrhages
do not blanch on pressure
Plaque
elevated patch or flat area of skin usually >5mm diameter
Nodule
palpable solid or round lesion usually >1cm diameter
and deeper in skin than papule
Annular
Ring-like
desquamation
skin coming off in scales
Discoid
filled in circle (nummular)
Erythema
Redness of the skin
Erosion
partial loss of epithelial layer
excoriation
Trauma from scratching
Exfoliation
Peeling skin
Hyperkeratotic
Excess thickened skin formed
Maceration
Moist, peeling skin
pedunculated
Attached by a stalk
Striae
Stretch marks
Telangectasia
Fine blood vessels visible on the skin
Ulcer
Full thickness loss of any epithelium
Umbilicated
Has a central depression (like umbilicus)
Weal
Swelling beneath the skin within the connective layer of tissue
