Keloid

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Related to keloidal: keloidal folliculitis, Keloidal blastomycosis

keloid

[′kē‚lȯid]
(medicine)
A firm, elevated fibrous formation of tissue at the site of a scar.

Keloid

 

a tumor-like growth of the fibrous connective tissue of the skin.

The causes of keloid development are not clear. Certain persons have a predisposition to their development. A distinction is made between true (spontaneous) keloids, which develop on visibly unchanged skin, and false keloids, which develop at the site of a scar after trauma (mechanical, thermal, chemical) or purulent disease (a furuncle, for example). A true keloid is a slightly elevated formation (5–8 mm above the skin surface) of whitish or pinkish color and dense consistency, with a smooth, shiny surface. Keloids appear most often in young people in the area of the chest, neck, and pinnae; and more rarely, on the face and limbs. Growth takes place for several weeks or sometimes months, after which the dimensions of the keloid remain unchanged throughout the patient’s lifetime. Treatment consists of injections of hyaluronidase and vitreous body; administration of vitamins PP, B2, and C; electrophoresis of potassium iodide; paraffin therapy; and X-ray therapy.

References in periodicals archive ?
People with a family history of scarring, both hypertrophic and keloidal, need to minimize any trauma to their skin, including avoiding body piercing and unnecessary surgeries.
tru-derm Scar Cream dramatically improves the appearance of the user's skin by softening, smoothing, and flattening all types of scars, including scars from healed lacerations, stretch marks, acne scars, hypertrophic and keloidal scars, burns, and even insect bites.
5-cm diameter, dusky-red, nontender, plaque-like lesion surrounded by keloidal scar tissue on the posterior aspect of her right upper arm (Figure 1).
His patient was a 52-year-old man who worked as a rubber collector in the Amazonas state of Brazil, who had numerous slowly developing nodular keloidal lesions in the lumbosacral spine area, from which microorganisms resembling Paracoccidioides brasiliensis were observed on microscopy (2).
The problem occurs when shaved hairs grow back under the skin, producing inflammation, irritation and, occasionally, keloidal scars.