basics lesions of skin - Dr. Gurjot Marwah

IN THE NAME OWNER OF BEAUTY

MORPHOLOGY&TERMINOLOGYOFSKIN LESIONS

MORPHOLOGY & TERMINOLOGY OF SKIN LESIONS

KIND OF LESIONS IN DERMATOLOGY

1- PRIMARY SKIN LESIONS

2-SECONDARY SKIN LESIONS

3- SPECIAL SKIN LESIONS

PRIMARY LESIONS

MACULE

Flat, circumscribed skin discoloration that lacks surface elevation or depression

Vitiligo

Ink tattoo

Flat, circumscribed skin discoloration, a very large macule

Vitiligo

PATCH

Elevated, solid lesion <0.5 cm in diameter

B.C.C

Intradermal Nevi

PAPULE

Elevated, solid”confluence of papule”>0.5 cm in diameter that lacks a deep component

Psoriasis

M.F

PLAQUE

Elevated, solid lesion>0.5 cm in diameter, a larger-deeper papule

Lipoma

Rheumatoid nudule

NODULE

Plaque that contains clear fluid ,a blister

Herpes simplex

Herpes zoster

Contact dermatitis

VESICLE

Localized fluid collection>0.5 cm in diameter, a large vesicle

Pemphigus vulgaris

Bullous pemphigoid

Bullous impetigo

BULLA

Papule that contains purulent material

FolliculitisImpetigoAcnePustular

psoriasis

PUSTULE

Firm,edematous,plaque that is evanescent and pruritic, a hive

Urticaria

Urticaria pigmentosa

WHEAL (HIVE)

SECONDARY

LESIONS

A collection of cellular debris ,dried serum,and blood

A scab antecedent primary lesion is usually a vesicle,bulla or pustule

ImpetigoCapitis Tinea

CRUST

A partial focal loss of epidermis, heals without scarring

TEN

Perleche

EROSION

Thick stratum corneum that results from hyperproliferation or increased cohesion of keratinocytes

4S

Scarlet fever

SCALE

A full-thickness, focal loss of dermis,heals with scarring

Bed sore

Syphlis

ULCER

Vertical loss of epidermis and dermis with sharply defined walls, crack in skin

PerlecheEczema

FISSURE

A collection of new connective tissue, may be hypertrophic or atroohic scar implies dermoepidermal damage

BurnAcne

SCAR

Thinning of the epidermis, dermis or fat that cause depression in the skin surface

Morphea

ATROPHY

SPECIAL SKIN LESIONS

Linear erosion included by scratching

ScabiesAtopic

DermatitisPrurigo

EXCORIATION

Folliculocentric collection of sebum and keratin

AcneaDLE

COMEDO

Millia are tiny pimple-like spots usually on a

Newborn baby

Tiny white cyston the surface of the skin

Sun Damage

MILIA

Nodule that contains fluid semisolidmaterial

Acne

Pilar cyst

CYST

An elevated channel in the superficial epidermis produced by parasite such as mite sarcoptes scabiei

Scabies

BURROW

Focal area of thickened skin produced by chronic scratching or rubbing

Atophic Dermatitis

LICHENIFICATION

Small, dilated ,superficial blood vessels that disappear with pressure

CREST Syndrome

SclerodermaRosacea

TELANGIECTASIA

A small purplish spot on a body surface caused by a minute hemorrhage<0.5 cm

VasculitisDIC

PETECHIAE

A small purplish spot

on a body surfacecaused by a

minute hemorrhage>0.5 cm

Platelet Disorder

PURPURA