Kelods are abnomally healed skin wounds that develop in the subpapillary of the dermis. They are a lesion with wide, raised and deep scars.
They exceed the original dimensions of the wound and grow mounds upon mounds of collagen in a pseudotumor fashion.
Their treatment may take several forms such as surgery, intralesional injection of steroid, compression, superficial radiation, and combination therapy.
However, absolute method is nothing until now. Recently, the cryosurgery shows relatively good effect in treatment, so we tried the clinical experience with cryosurgery in the treatment of keloids.
Material and methods:
During the past 2 years, we treatde 20 individuals of the keloids with severe itching and pain. The age ranged from 5 to 45 years old. Only 6 cases were biopsied before and after cryosurgery.
The cryosurgery set we used was Toitu model CR 201 N₂O gas(tip temperature is -80。C) and was applied directly on the lesion about 4 to 5 minutes with slight compression.
After cryosurgery in keloids, the following results were obtained:
1. It is both quick and easy method.
2. It causes little or no pain and no loss of blood.
3. Integumentary normalization is rapid. The new scar tissue smaller, and more elastic and soft.
4. The pain, itching, and paresthesia commonly associated with keloid is usually disappeared.
5. Other treatment can be used after cryosurgery.
6. Histologic picture after cryosurgery is similar with the result of steroid injection.
7. The mechanism of the cryosurgery in keloids is the result of the direct tissue destroying action and cryoimmunologic reaction.
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