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D&D of the skin
Esthetics chapter 4, Disorder and diseases of the skin
| Term | Definition |
|---|---|
| Dermatology | The branch of medical science that studies and treats the skin and its disorders and diseases. |
| Dermatologist | A physician who treat skin disorders and diseases. |
| Lesions | A structural change in the tissues caused by damage or injury, including any mark, wound, or abnormality. |
| Primary Lesion | Characterized by flat, nonpalpable changes in skin color or by elevations formed by fluid in a cavity, such as vesicles or pustules. |
| Bulla | Large blisters containing watery fluid; similar to a vesicle. Requires medical referral. |
| Cyst | Closed, abnormally developed sac that contains pus, semifluid or morbid matter above or below to skin, that can be drained. |
| Tubercle | Closed, abnormally developed sac that contains pus, semifluid or morbid matter above or below to skin, that cannot be drained. |
| Macule | A flat spot of discoloration on the skin, example, a freckle. |
| Nodules | A solid bump larger than 0.4 inches that can be easily felt. |
| Papule | A small elevation on the skin that contains no fluid; but may develop pus. Example: Acne |
| Pustule | A raised, inflamed papule with a white or yellow center containing pus in the top of the lesion. |
| Tumor | An abnormal mass varying in size, shape, and color. Any type of abnormal mass, not always cancer. |
| Vesicle | A small blister or sac containing clear fluid, lying within or just beneath the epidermis. Example: poison ivy/poison oak |
| Wheal | An itchy swollen lesion that can be caused by a blow, scratch, bite of an insect, urticaria (skin allergy), or the sting of a nettle. Typically resolves on its own. |
| Secondary Lesion | Characterized by piles of material on the skin surface, such as a crust or scab, or by depressions on the skins surface, such as an ulcer. |
| Crust | Dead cells that form over a wound, or blemish while healing; accumulation of sebum, pus and sometimes mixed with epidermal cells. |
| Excoriation | Skin sore or abrasion produced by scratching or scraping. |
| Fissure | Crack in the skin that penetrates the dermis. |
| Keloid | A thick scar resulting from excessive growth of fibrous tissue. Keloids will form along any type of scar for people who are susceptible to them. |
| Scale | Thin, dry, or oily plate of epidermal flakes. Example: dandruff |
| Scar or Cicatrix | Slightly raised or depressed area of the skin that forms as a result of the healing process related to an injury or lesion. |
| Ulcer | open lesion on the skin or mucous membrane of the body; accompanied by the loss of skin depth, and possibly weeping fluids or pus. |
| Tertiary Lesion | Vascular lesions which involved the blood or circulatory system. |
| Benign | meaning "not harmful" |
| Malignant | "cancerous |
| Carcinoma | Cancerous tissue |
| Actinic Keratosis | Pink or flesh-colored precancerous lesions that feel sharp or rough, resulting from sun damage. |
| Normal Mole | A small brownish spot on the skin ranging in color from pale tan to brown or bluish black. (NOT a type of cancer) |
| Basal Cell carcinoma | The most common and the least severe type of skin cancer, which often appears as light, pearly nodules. |
| Squamous cell carcinoma | More serious than basal cell, characterized by scaly red or pink papules or nodules; can spread throughout the body. |
| Malignant Melanoma |
Created by:
nbloss