Needle aspiration biopsy | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-05-02

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Fine-needle_aspiration


00:01:54 1 Medical uses
00:03:16 2 Preparation
00:04:34 3 Procedure
00:06:06 4 Post-operative care and complications
00:09:28 5 Criticism
00:10:00 6 See also



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SUMMARY
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Fine-needle aspiration (FNA) is a diagnostic procedure used to investigate lumps or masses. In this technique, a thin (23–25 gauge), hollow needle is inserted into the mass for sampling of cells that, after being stained, will be examined under a microscope (biopsy). The sampling and biopsy considered together are called fine-needle aspiration biopsy (FNAB) or fine-needle aspiration cytology (FNAC) (the latter to emphasize that any aspiration biopsy involves cytopathology, not histopathology). Fine-needle aspiration biopsies are very safe minor surgical procedures. Often, a major surgical (excisional or open) biopsy can be avoided by performing a needle aspiration biopsy instead, eliminating the need for hospitalization. In 1981, the first fine-needle aspiration biopsy in the United States was done at Maimonides Medical Center. Today, this procedure is widely used in the diagnosis of cancer and inflammatory conditions.
A needle aspiration biopsy is safer and less traumatic than an open surgical biopsy, and significant complications are usually rare, depending on the body site. Common complications include bruising and soreness. There is a risk, because the biopsy is very small (only a few cells), that the problematic cells will be missed, resulting in a false negative result. There is also a risk that the cells taken will not enable a definitive diagnosis.