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Needle aspiration biopsy
Needle aspiration biopsy (NAB), also known as fine needle aspiration cytology (FNAC), fine needle aspiration biopsy (FNAB) and fine needle aspiration (FNA), is a procedure performed to diagnose certain kinds of medical conditions, such as lumps in the neck. In this technique a thin needle is inserted into a mass or lump to extract cells that will be examined under a microscope.
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