Skin Biopsy

Tuesday, July 1, 2008

A skin biopsy is a procedure in which a doctor cuts and removes a small sample of skin to have it tested. This sample may help your doctor diagnose diseases such as skin cancer, infection, or other skin disorders.

There are several types of skin biopsy, including:



* Shave biopsy: The doctor shaves a thin layer from the top of a lesion.
* Punch biopsy: The doctor uses an instrument called a punch to remove a cylindrical section through all layers of the lesion.
* Excisional biopsy: The doctor uses a scalpel to take off the entire lesion. This method is used for smaller lesions.
* Incisional biopsy: The doctor uses a scalpel to remove a small sample of a large lesion.

How Is a Skin Biopsy Performed?

The doctor will first cleanse the biopsy site, and then numb the skin by using an anesthetic (pain-relieving) spray, cream, or injection. The skin is then sampled using one of the above procedures. Shave biopsies do not usually need stitches, while punch, excisional, and incisional biopsies will sometimes be closed with sutures. The procedure is usually done in the doctor's office.
What to Expect Following a Biopsy

After the biopsy is performed you may have some soreness around the biopsied site for 1 to 2 weeks. Tylenol is usually sufficient to relieve any discomfort. If you had stitches after the procedure, keep the area as clean and as dry as possible. Your doctor will tell you when the stitches should be removed (usually within one week). If adhesive steri-strips (which look like small pieces of tape) were used to close the incision, do not remove them. They will gradually fall off on their own. If the strips do not fall off on their own, your health care provider will remove them at your next follow-up appointment.

You should expect a small scar from the biopsy.
What Is Done With the Biopsy Sample?

The tissue is processed, and a pathologist examines the biopsy sample under a microscope to determine if there is any disease. The results usually come back within 1-2 weeks.
When Should I Call the Doctor?

Call your doctor if you have bleeding that can't be stopped by applying pressure, or if you have any questions or concerns after the procedure.

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