needle aspiration

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Medical Dictionary
	Definition:		uses a thin needle and syringe to collect tissue or drain a lump after using a local anesthetic.
Biology Dictionary
	Definition:		This is the procedure of inserting a needle into a lesion to obtain a sample to study its biochemical composition, cell type (benign or malignant, presence of white and red blood cells), and culture or microscopic study for the presence of microorganisms.