Most doctors consider FNA to be a very good test. Overall, it is about 90-95% accurate when the aspiration and interpretation are done by an experienced cytopathologist. There is a small chance (usually less than 10%, depending on the size, location and nature of the lump) that the FNA will not be interpreted as cancer when cancer is there. Very rarely (usually less than 1% of the cases), FNA may be falsely interpreted as cancer when cancer is not there. Your doctor will use the results of the FNA and other clinical information to determine if further tests or treatment are necessary.

No, the procedure is completely painless. However, the needles used in FNA are very thin. Also, for your comfort, local anesthesia is often used before the FNA. If you are sore after the procedure, a simple pain reliever such as Tylenol (no nonsteroidal anti-inflammatories, i.e. Advil) or an ice pack may alleviate mild symptoms.

FAQs 7 - Dr. Nadelman

Q: Is there any preparation for the FNA?

Generally, you may engage in your normal activities, including eating and drinking before and after the procedure. The only special precaution is to avoid taking anything that would increase bleeding such as aspirin or non-steroidal anti-inflammatories (NSAIDs), such as Advil, Ibuprofen, Motrin, Alieve, fish oil, vitamin E, etc., from about a week before the appointment (or the time your appointment is made), to a few days after the procedure. This may be helpful in limiting any additional bruising from the procedure. Moreover, you may resume normal activities immediately after the procedure.

Q: What are the alternatives to FNA?

The alternative is to do a surgical biopsy, which is done with a much larger needle or by an operation. Surgery is more invasive, has more complications, and may take a while to schedule. A FNA is simpler, less expensive, has fewer complications and faster.

Q: What are the risks of FNA?

As with any procedure in which the skin is broken (like having your blood drawn), there is always a risk of pain, bleeding, bruising or slight tenderness at the aspiration site. Very rarely, an infection may occur after an FNA. However, the benefits of the FNA far outweigh the risks.

Q: What is a fine needle aspiration (FNA)?

Fine Needle Aspiration is a method of taking a small amount of tissue from a lump in the body. A very thin needle is inserted into the lump and tissue is dislodged by movement of the needle and/or by gentle suction. The tissue is then examined microscopically by a pathologist. The pathologist will make a diagnosis (find out the cause of the lump) and send a report to your doctor.

FNA Biopsy Resources

Helpful Links

FNA Biopsy Resources

Helpful Links

Is there any preparation for the FNA?

What are the alternatives to FNA?

What are the risks of FNA?

How accurate is FNA?

Is FNA painful?

What is a fine needle aspiration (FNA)?

FNA Biopsy Resources

Helpful Links

FNA Biopsy Resources

Helpful Links