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A firm, elevated fibrous formation of tissue at the site of a scar.



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 ?
Silicone gel sheeting for the prevention and management of evolving hypertrophic and keloid scars.
The treatment of 783 keloid scars by iridium 192 interstitial irradiation after surgical excision.
The main features differentiating keloid scars from hypertrophic scars are that keloid scars enlarge and extend beyond the original injury site, there is no spontaneous regression and following excision there is a high recurrence rate.
Laser procedures are less likely than scalpel procedures to produce keloid scars and have been reported to successfully improve scar color, size, and texture, although the risk of hyperpigmentation ranges from 1% to 24%.
Based on the results of this case and others, our primary treatment for hypertrophic and keloid scars became the injection regimen, and surgery was relegated to status as a second-line, and often unnecessary, option.
This approach may be useful in dermatology and plastic surgery, especially for burn victims who get extensive scarring, patients with keloid scars, etc.
The abnormal healing that creates keloid scars may be more common in blacks, Dr.
Children scar differently than adults and are more prone to hypertrophic scars and keloid scars.
In addition to the burns, surgeons have to repair keloid scars, tissue that grew after botched surgeries in Russia.
Acne can leave behind two types of skin marks: pitted scars and thick, keloid scars.