Skin tag
A small tag of skin that may be squat (sessile) or on a stalk (a peduncle). Skin tags commonly occur on the eyelids, neck, armpits, upper chest, and groin. This tiny benign tumor of the skin usually causes no symptoms unless it is repeatedly irritated as, for example, by a collar. Treatment may involve freezing the skin tag with liquid nitrogen or cutting off the skin tag with a scalpel or scissors if the skin tag is irritating or cosmetically unwanted. Also known as acrochordon.
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A test in which a small drop of the suspected allergy-provoking substance (allergen) is placed on the skin and the skin is then gently scratched through the drop with a sterile needle. If the skin reddens and, more importantly, if it swells, the test is read as positive, and allergy to that substance is considered […]
- Skin test for immunity
A method of evaluating whether a person has developed an immune response to a certain infection. A substance is injected into the deep layer of the skin (dermis) and causes a reaction if the immune system recognizes it. One of the most common skin tests is the tuberculin test, which reveals whether a person has […]
- Skin, tattooing of the
non-reactive pigments; sterile, disposable needles; and sterile work conditions. Without these refinements, inks may cause inflammation, and infection is an ever-present danger. Persons who are prone to keloid scarring should be aware that tattoos can trigger the formation of disfiguring keloids. Ink lines may also spread or change color over the years, a fact of […]
- Skittles
Street name for dextromethorphan (DXM).
- Skittling
Street name for the high produced by abuse of the drug dextromethorphan.