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00031_Field_SRC.c27.C.6.txt
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1997-01-28
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Endoscopy and Biopsy
• A biopsy, either with a fine needle (FNA) or regular needle, is often necessary. This procedure can be done
through the skin without significant danger. The biopsy sample can be used to distinguish between types of
malignancy because the tumor cells of different cancers have characteristic features under the microscope.