Hypertrophic scars and keloids are both forms of excessive scar healing. They occur in 5-15% of wounds. Hypertrophic scars are scars with excessive healing that remain within the borders of the original area of scarring. Keloids however, extend beyond the original scar margins and sometimes will grow outward as fungating masses.
Both hypertrophic scars and keloids can be treated with steroid injections. However, when scars become painful, itchy or disfiguring, excision of the scars and reconstruction may be warranted. Although recurrence rates for keloids can be very high, recent studies have shown that post-operative treatment with low-dose radiation can reduce recurrence.
The photos seen show a patient that had removal of two keloid scars from her ear.