Boisvert Lecture 9/18
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| papule | solid, raised less than 1 cm
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| nodule | solid, raised greater than 1 cm but less than 2 cm
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| tumor | solid, raised greater 2 cm
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| plaque | raised, surface area large in relation to height greater than 1 cm
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| wheal | raised, leakage fluid into dermis
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| vesicle | fluid filled, raised, less than 1 cm
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| bulla | fluid filled, raised, greater than 1 cm
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| pustule | raised, less 1 cm filled purulent fluid
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| 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.
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| burrow | a channel under the skin produced by a parasite
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| cyst | raised, encapsulated, in dermis or subcutaneous, filled liquid or semisolid
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| abscess | accumulation of purulent material in the dermis or subcutaneous
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| furuncle | A necrotizing form of inflammation of a hair follicle
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| carbuncle | A coalescence of several furuncles
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| milia | keratin filled cysts in distal sweat gland
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| Erythema | pink or red blanchable discoloration due dilated blood vessels
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| Petechiae | nonblanching, less .5 cm intravascular defect
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| Purpura | nonblanching greater than .5 cm intravascular defect
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| Ecchymosis | nonblanching due to vascular destruction or vasculitis
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| Spider angioma | blanchable, red body with radiating legs
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| Venous star | non blanchable, bluish spider
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| Telangiectasia | fine red lines due to dilatation of capillaries
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| Capillary hemangioma | macular patch due to dilatation of capillary
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| erosion | loss of superficial epidermis
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| ulcer | loss of epidermis and at least part of dermis
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| fissure | linear crack form epidermis to dermis
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| excoriation | superficial linear trauma
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| scaling | shedding stratum cornea
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| crusting | dried serum, pus or blood
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| lichenification | thickening and roughening
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| scar | connective tissue replacement
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| keloid | hypertrophied scar
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| sclerosis | Diffuse or circumscribed hardening of the skin
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| atrophy | thinning of the epidermis
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| Annular | ring shaped
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| Arcuate | partial rings
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| Circinate | circular
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| Confluent | running together
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| Discoid | disc shaped without central clearing
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| Grouped | clustered together
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| Iris | circle within a circle
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| Linear | in a line
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| Reticulated | lace like
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| Serpiginous | snake like
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| macule | flat less than 1 cm
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| patch | flat greater than 1 cm
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