A skin biopsy is a technique used to diagnose skin diseases, such as cancer. In this procedure, a sample of skin is removed from an anaesthetized site and sent to a laboratory to be examined under a microscope. A biopsy may be used to cut away a whole lesion from the skin, such as a mole, or to remove a small sample at the edge of a large patch of affected skin.
From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.
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