Scar—Replacement of destroyed tissue by fibrous tissue. May be thick and pink (hypertrophic) or thin and white (atrophic), but does not extend beyond the injured area
Burrow of Scabies—A person with scabies has intense itching. Skin lesions include small papules, pustules, lichenified areas, and excoriations. With a magnifying lens, look for the burrow of the mite that causes it. A burrow is a minute, slightly raised tunnel in the epidermis and is commonly found on the finger webs and on the sides of the fingers. It looks like a short (5-15 mm), linear or curved, gray line and may end in a tiny vesicle.
■ Comedo—The common blackhead that marks the plugged opening of a sebaceous gland, frequently seen with acne
■ Nevus—The common mole; appears flat to slightly elevated, round and evenly pigmented; however, some nevi look quite different, as in the pigmented nevi of melanoma.
■ Telangiectasias—Dilated small vessels (can be venules, arterioles, including spider angiomas, or capillaries) that look either red or bluish. May appear by themselves or as parts of other lesions, as in a basal cell carcinoma or radiodermatitis (skin injury from ionizing radiation).
(Sources of photos: Lichenification, Excoriation, Scar, Burrow of Scabies—Goodheart HP: A Photoguide of Common Skin Disorders: Diagnosis and Management. Philadelphia, Lippincott Williams & Wilkins, 1999; Atrophy—Fitzpatrick JE, Aeling JL: Dermatology Secrets in Color, 2nd ed. Philadelphia, Lippincott Williams & Wilkins, 2000 )
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