efloresensi

Tipe SKIN Tipe SKIN

lesionslesions

PRIMARYPRIMARY

Circumscribed Circumscribed color color

changechange

No elevation or No elevation or

depressiondepression

MACULESMACULES

Caused by Caused by capillary capillary

dilatationdilatation

Redness Redness disappearsdisappears with with

application of pressureapplication of pressure

ERYTHEMAERYTHEMA

Caused by Caused by

extravasated red extravasated red

blood cellsblood cells

Redness Redness remains remains

with application of with application of

pressurepressure

PetechiaePetechiae : small, pinpoint purpuric : small, pinpoint purpuric

EcchymosesEcchymoses : larger purpuric lesions : larger purpuric lesions

PURPURAPURPURA

Permanent Permanent

dilatationsdilatations of of

capillariescapillaries

May or may not May or may not

disappeardisappear with with

application of application of

pressurepressure

TELANGIECTASESTELANGIECTASES

Firm Firm edematous edematous

plaqueplaque

Usually Usually transienttransient

WHEALSWHEALS

A A solidsolid, elevated lesion, elevated lesion

0.5 cm or less0.5 cm or less

May coalesce into May coalesce into

plaquesplaques

Nodule Nodule : > 0.5 cm: > 0.5 cm

TumorTumor : general term : general term

of any mass; large of any mass; large

nodulenodule

PAPULESPAPULES

Circumscribed, solid Circumscribed, solid

elevationelevation

Usually Usually flat-toppedflat-topped

Surface area > Surface area >

heightheight

> 1 cm> 1 cm diameter diameter

PLAQUESPLAQUES

Circumscribed, Circumscribed, fluid-filledfluid-filled

lesionlesion

Subcorneal, Subcorneal,

intraepidermal, intraepidermal,

subepidermalsubepidermal

VesicleVesicle : < 0.5 cm : < 0.5 cm

BullaBulla : > 0.5 cm : > 0.5 cm

VESICLES VESICLES & BULLAE& BULLAE

A vesicle or bulla with A vesicle or bulla with

purulentpurulent exudate exudateMay or may not be May or may not be sterilesterile

Vary in size and shapeVary in size and shape

PUSTULESPUSTULES

A A sacsac

May contains May contains liquid or semisolidliquid or semisolid materials materials

CYSTSCYSTS

SECONDARYSECONDARY

Stratum corneum Stratum corneum

becomes perceptiblebecomes perceptible

Produced by abnormal Produced by abnormal

keratinization or keratinization or

scratchingscratching

May be soft, coarse or May be soft, coarse or

stratifiedstratified

SCALESSCALES

Dried exudateDried exudate of of

serum, blood or serum, blood or

puspus

CRUSTSCRUSTS

Focal depressionFocal depression of the skin of the skin

Results from thinning of the epidermis and/or Results from thinning of the epidermis and/or

dermisdermis

Potent topical steroids can causePotent topical steroids can cause

ATROPHYATROPHY

Focal loss of epidermisFocal loss of epidermis

Loss Loss does not penetrate into dermisdoes not penetrate into dermis

Heals without scarringHeals without scarring

EROSIONSEROSIONS

EXCORIATIONSEXCORIATIONS

Loss Loss does penetrate into papillary layer of does penetrate into papillary layer of

dermisdermis

Usually results fromUsually results from scratching scratching

Focal loss of Focal loss of epidermis and dermisepidermis and dermis

Deeper than excoriationsDeeper than excoriations

Heals with Heals with scarringscarring

ULCERSULCERS

SCARSSCARS

Focal replacement Focal replacement fibrosisfibrosis of of

the skinthe skin

Results from healing processesResults from healing processes

May be May be hypertrophichypertrophic or or atrophicatrophic

ThickeningThickening of the of the

skinskin

Exaggerated skin markingsExaggerated skin markings

Caused by chronic scratching/rubbingCaused by chronic scratching/rubbing

LICHENIFICATIONSLICHENIFICATIONS