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 A hard plaque of dense fibrotic tissue covered by a thin epidermis.
A mark of injury from any sort of process (physical or pathologic).
The injured tissue has been replaced by connective tissue. Scars may
result from wounds that have healed, lesions of diseases, or surgical
operations. When first developed, a scar is red or purple, later whitish
and glistening.
- Atrophic scar - Scar that is depressed below the skin
- Hypertrophic scar - Scar that is raised above the skin
- Keloid scar - This fibroid growth of epidermal tissue results from
the healing process of surgical incision or traumatic skin injury.
There is a greater tendency towards keloids in blacks and fair skinned
Caucasians. The etiology is unknown.
- Acne scar - depressed scar that results when acne is picked. Types
of acne scars include ice pick, rolling and boxcar. Ice pick scars
are deep, well defined and narrow Rolling scars are subtle with an
undulating appearance Boxcar scars can be superficial (shallow) or
deep Shallow boxcar scars respond best to lasers.
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