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Skin Lesions WVSOM

Boisvert Lecture 9/18

papule solid, raised less than 1 cm
nodule solid, raised greater than 1 cm but less than 2 cm
tumor solid, raised greater 2 cm
plaque raised, surface area large in relation to height greater than 1 cm
wheal raised, leakage fluid into dermis
vesicle fluid filled, raised, less than 1 cm
bulla fluid filled, raised, greater than 1 cm
pustule raised, less 1 cm filled purulent fluid
comedo a plug of sebum and keratin in the opening of a hair follicle, the opening can be dilated forming a blackhead, or closed forming a whitehead.
burrow a channel under the skin produced by a parasite
cyst raised, encapsulated, in dermis or subcutaneous, filled liquid or semisolid
abscess accumulation of purulent material in the dermis or subcutaneous
furuncle A necrotizing form of inflammation of a hair follicle
carbuncle A coalescence of several furuncles
milia keratin filled cysts in distal sweat gland
Erythema pink or red blanchable discoloration due dilated blood vessels
Petechiae nonblanching, less .5 cm intravascular defect
Purpura nonblanching greater than .5 cm intravascular defect
Ecchymosis nonblanching due to vascular destruction or vasculitis
Spider angioma blanchable, red body with radiating legs
Venous star non blanchable, bluish spider
Telangiectasia fine red lines due to dilatation of capillaries
Capillary hemangioma macular patch due to dilatation of capillary
erosion loss of superficial epidermis
ulcer loss of epidermis and at least part of dermis
fissure linear crack form epidermis to dermis
excoriation superficial linear trauma
scaling shedding stratum cornea
crusting dried serum, pus or blood
lichenification thickening and roughening
scar connective tissue replacement
keloid hypertrophied scar
sclerosis Diffuse or circumscribed hardening of the skin
atrophy thinning of the epidermis
Annular ring shaped
Arcuate partial rings
Circinate circular
Confluent running together
Discoid disc shaped without central clearing
Grouped clustered together
Iris circle within a circle
Linear in a line
Reticulated lace like
Serpiginous snake like
macule flat less than 1 cm
patch flat greater than 1 cm
Created by: greading