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A flat, circumscribed area that is a change in the color of the skin. Less than 1 cm in diameter. Examples are freckles, flat moles (nevil), petachiae, measles, scarlet fever. (Primary)

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Macule

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Skin Lesions - Leaderboard

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Skin Lesions - Details

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1) Chapter 1 View

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A flat, circumscribed area that is a change in the color of the skin. Less than 1 cm in diameter. Examples are freckles, flat moles (nevil), petachiae, measles, scarlet fever. (Primary)

Macule

An elevated, firm circumscribed area less than 1 cm in diameter. (Primary)

Papule

A flat, non palpable irregular shaped macule more than 1 cm diameter. Examples are Vitiligo, pot wine stains, mongolian spots, caf'e au lait spots. (Primary)

Patch

Elevated, firm and rough lesions with flat top surface more than 1 cm in diameter. (Primary)

Plaque

Elevated irregular shaped area of cutaneous edema; solid transient; variable diameter. Examples are insect bites, urticaria, and allergic reactions. (Primary)

Wheal

Elevated, firm, circumscribed lesion; deeper than a papule. 1-2 cm in diameter. Examples are erythema, nodosum, lipomas.(Primary)

Node

Elevated, circumscribed, superficial, not into dermis, filled with serous fluid, less than 1 cm in diameter. Examples are Varicella, herpes zoster. (Primary)

Vesicle

Vesicle more than 1 cm in diameter. Example are Blister, pemphigus vulgaris. (Primary)

Bulla

Elevated, superficial lesions; similar with vesicle but filled with pus. (Primary)

Pustule

Elevated, circumscribed, encapsulated lesion; indermisor subcutaneous layer; filled with liquid or semisolid material. (Primary)

Cyst

Fine, irregular red lines produced by capillary dilation. (Primary)

Telangiectasia

Heaped-up, keratinized cells, flaky skin, irregular, thick or thin; dry or oily, variation in size

Scale

Rough, thickened epidermis secondary to persistent rubbing, itching, or skin irritation; often involves flexor surface of extremity.

Lichenification

Irregular shaped, elevated progressively enlarging scar; grows beyond the boundaries of the wound; caused by eexcessive collagen formation during healing

Keloid

Thin to thick fibrous tissue that replaces normal skin following injury or laceration of the dermis

Scar

Loss of the epidermis; linear, hollowed-out, crusted area. Examples are Abrasions or scratch, scabies

Excoriation

Linear crack or break from the epidermis to the dermis; maybe moist or dry. Examples are Athletes foot, cracks at the corner of the mouth.

Fissure

Loss of part of the epidermis, depressed, moist, glistening; follows rapture of the vesicle or bulla. Examples are Varicella, variola after rapture

Erosion

Loss of epidermis and dermis, concave, varies in size

Ulcer

Thinning of the skin surface and loss of skin markings, skin appears translucent and paper like

Atrophy