A biopsy is the removal of a small piece of tissue for laboratory examination.
Tissue sampling
There are several different types of biopsies.
A needle (percutaneous) biopsy removes tissue using a hollow tube called a syringe. A needle is passed several times through the tissue being examined. The surgeon uses the needle to remove the tissue sample. Needle biopsies are often done using
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Source: Agency for Healthcare Research and Quality
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Source: National Cancer Institue
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