A punch biopsy is done to remove a small growth by removing a core of tissue with a skin punch. The biopsy area is then covered with a bandage.
After the growth is removed, a doctor trained to look at tissue samples (pathologist) will check it for abnormalities, such as cancer. The pathologist also may do tests to detect an infection caused by a virus, a fungus, or bacteria.
eMedicineHealth Medical Reference from Healthwise
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