keloid - Google News

keloid scars - Google News

Jumat, 12 April 2013

Is keloid removal necessary? What are the treatments for keloids?

The methods now available to treat keloids are:

  • Cortisone injections (intralesional steroids): These are safe and not very painful. Injections are usually given once per month until the maximum benefit is obtained. Injections are safe (very little steroid gets into the bloodstream) and usually help flatten keloids; however, steroid injections can also make the flattened keloid redder by stimulating the formation of more superficial blood vessels. (These can be treated using a laser; see below.) The keloid may look better after treatment than it looked to start with, but even the best results leave a mark that looks and feels quite different from the surrounding skin.
  • Surgery: This is risky, because cutting a keloid can trigger the formation of a similar or even larger keloid. Some surgeons achieve success by injecting steroids or applying pressure dressings to the wound site after cutting away the keloid. Radiation after surgical excision has also been used.


  • Laser: The pulsed-dye laser can be effective at flattening keloids and making them look less red. Treatment is safe and not very painful, but several treatment sessions may be needed. These may be costly, since such treatments are not generally covered by insurance plans.


  • Silicone sheets: This involves wearing a sheet of silicone gel on the affected area for several hours a day for weeks or months, which is hard to sustain. Results are variable. Some doctors claim similar success with compression dressings made from materials other than silicone.


  • Cryotherapy: Freezing keloids with liquid nitrogen may flatten them but often darkens the site of treatment.


  • Interferon: Interferons are proteins produced by the body's immune systems that help fight off viruses, bacteria, and other challenges. In recent studies, injections of interferon have shown promise in reducing the size of keloids, though it's not yet certain whether that effect will be lasting. Current research is underway using a variant of this method, applying topical imiquimod (Aldara), which stimulates the body to produce interferon.


  • Fluorouracil: Injections of this chemotherapy agent, alone or together with steroids, have been used as well for treatment of keloids.


  • Radiation: Some doctors have reported safe and effective use of radiation to treat keloids.

Kamis, 12 April 2012

All About Kelloid

What is the cause of keloids?

Doctors do not understand exactly why keloids form in certain people or situations and not in others. Changes in the cellular signals that control growth and proliferation may be related to the process of keloid formation, but these changes have not yet been characterized scientifically.

Which people are most susceptible to keloids?

Keloids are equally common in women and men, although at least in times past more women developed them because of a greater degree of earlobe and body piercing among women. Keloids are less common in children and the elderly. Although people with darker skin are more likely to develop them, keloids can occur in people of all skin types. In some cases, the tendency to form keloids seems to run in families.

In which area of the body are keloids most likely to appear?

Keloids develop most often on the chest, back, shoulders, and earlobes. They rarely develop on the face (with the exception of the jawline).

Keloids and piercing

Keloids can develop following the minor injuries that occur with body piercing. Since doctors do not understand the precise reasons why some people are more prone to developing keloids, it is impossible to predict whether piercing will lead to keloid formation. Although there are some families which seem prone to forming keloids, for the most part, it's impossible to tell who will develop a keloid. One person might, for instance, develop a keloid in one earlobe after piercing and not in the other. It makes sense, however, for someone who has formed one keloid to avoid any elective surgery or piercing, especially in body areas prone to scarring.

Is keloid prevention possible?

The best way to deal with a keloid is not to get one. A person who has had a keloid should not undergo elective skin surgeries or procedures such as piercing. When it comes to keloids, prevention is crucial, because current treatments are often not completely successful and may not work at all.

Senin, 14 November 2011

Family Medicine — Keloid scars not dangerous

Question: I had a benign growth removed from my chest about six months ago, and now I have this really big, ugly, pink scar that keeps growing. Someone told me it’s a “keloid.” Is it dangerous? Should I go back and have it removed?

Answer: Keloid scars are an overgrowth of collagen, the substance that helps wounds heal. They are benign but can cause some discomfort and cosmetic distress. Keloids, like all scars, occur where skin has been cut or damaged by anything from an accident or a surgical procedure to a body piercing or acne.

The body produces collagen just below the top layer of skin to fill in breaks in the skin. Normally, collagen “knows” when it’s no longer needed. But some people keep producing collagen, so the scar keeps growing. If the overgrowth follows the boundaries of the original injury but is slightly raised, the resulting scar is called a hypertrophic scar, and these often fade over time. But if the scar extends both up and beyond the original injury, it’s deemed a keloid.

Keloids are generally shiny, pink and dome-shaped, and they’re usually firm. They seem to run in families and are more common in people of African and Asian descent. Keloids can occur anywhere on the body but are most common on the chest, upper back, shoulders and earlobes (after piercing). A keloid may form one time but not another. Usually, keloids cause no symptoms, but some people experience itching and tenderness while they’re growing.

Aside from the appearance of the keloid, itself, another cosmetic issue is dark pigmentation that occurs if the scar is overexposed to sun within the first year it’s forming. The scar will tan darker than the skin around it, and usually, the difference in color is permanent.

I tell my patients to put a patch or band-aid over the scar if they’re going to be in the sun. While this, too, will result in a scar that is a different color than the skin around it, at least it’s a temporary difference, and the skin tones should even out the following year. And remember: scar or no scar, you should always use a high SPF sunscreen.

In more than 50 percent of cases, surgery to remove keloids results in increased scarring, but advances are being made to improve this number. It is very difficult to completely remove a keloid. Cortisone injections can help flatten it. These are repeated monthly. Cryosurgery – freezing with liquid nitrogen – may also help flatten the scar, but it also can discolor the skin. Some physicians have used lasers to treat keloids, but the outcomes have not been stellar. Some are also trying lasers plus cortisone.

 Finally, there are some over-the-counter products, such as silicone sheeting, that have shown good results, but only with very long-term treatment.

Ask your family doctor about the scar. He or she may recommend that you see a dermatologist or plastic surgeon.

Rabu, 20 April 2011

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