Fine-needle aspiration

Fine-needle aspiration is a method of collecting cells from the breast, liver, mouth, neck, lymph nodes, genitals, respiratory tract, or thyroid to look for signs of cancer, infection, or other conditions. During a fine-needle aspiration, a health professional inserts a thin needle into a suspicious lump and removes cells that are then examined under a microscope.

Last Updated: April 29, 2009

Author: Bets Davis, MFA

Medical Review: Joy Melnikow, MD, MPH - Family Medicine & Brent Shoji, MD - General Surgery

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