What does "Fine needle aspiration" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
Fine needle aspiration is a type of medical test. It involves using a thin needle to remove a small amount of tissue or fluid from a part of the body. This sample is then examined under a microscope to check for any signs of disease. This procedure is often used to investigate lumps or abnormalities found in organs such as the thyroid, lung, or liver.
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