Keloids and hypertrophic scars

Hypertrophic scars are characteristically elevated but remain within the limits of the initial injury and regress spontaneously. Keloids extend beyond the original wound and do not regress (Fig. 7-6).13 Even though they are

Figure 7-6 Typical earlobe keloid after piercing. Notice that the keloid extends well beyond the original wound (ear pierce).

most prevalent in patients between 10 and 30 years of age, keloids can occur at any age. Keloids are far more common in African-Americans than in other races. The underlying mechanism of hypertrophic scar and keloid formation is excessive collagen production with concomitant decreased collagen degradation. Although keloids have been shown to have an underlying genetic basis, various other contributing factors, such as andro-gens/estrogens, immunologic alterations, and others have been implicated as well.

How To Reduce Acne Scarring

How To Reduce Acne Scarring

Acne is a name that is famous in its own right, but for all of the wrong reasons. Most teenagers know, and dread, the very word, as it so prevalently wrecks havoc on their faces throughout their adolescent years.

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