Have you ever been told by a doctor or a nurse to have an ultrasound scan of your neck to check your thyroid gland? You may have felt a little scared and nervous when you were told that, right? You may have thought, "What the hell is going to happen?" But there's really nothing to be afraid of. This is a very simple, painless test. Today, we'll talk about it clearly and in a way that you can understand.
What is a Thyroid Ultrasound?
Simply put, a thyroid ultrasound is a painless test that looks at your thyroid gland and the tissue around it in your neck. It's like taking a picture. Doctors sometimes call it a ``sonogram'' or an ``echogram.'' You've probably heard those terms before.
This thyroid ultrasound test is currently the most commonly used method to diagnose thyroid problems. It can detect many things. For example:
- To see if you have a goiter . This means that the thyroid gland is swollen.
- Swollen lymph nodes in the neck (Cervical Lymphadenopathy).
- If you suspect you have thyroid cancer , get it checked out.
- Check for thyroid nodules or cysts .
Why would a doctor recommend a thyroid ultrasound?
Most often, a doctor will order this scan after another test or because of a symptom you are having. Think about it this way:
- If you have a CT scan for some other reason and the doctor sees something like a lump on your thyroid.
- If there is anything unusual in your blood test results.
- If you have symptoms that suggest you have a thyroid problem (e.g., neck swelling, difficulty swallowing).
- To see if a previously detected thyroid nodule has changed, that is, if new images need to be taken.
Sometimes, if the doctor finds something during your physical exam, they can do this scan right away. But it's a little less common.
If this ultrasound scan shows anything unusual, your doctor will tell you what tests or treatments you need to do next. Don't worry, not all lumps are cancer.
How does this scan work?
An ultrasound scan uses sound waves to create images of the organs and tissues inside your body. The ultrasound machine sends these sound waves to your thyroid gland. When the sound waves bounce back, the machine creates real-time pictures or videos of it. In other words, the doctor can see what's under your skin.
Thyroid ultrasound is a very effective method because your thyroid gland is located under the skin of your neck, at a very shallow depth of about an inch and a half. Therefore, it can be easily scanned with a small device called a ``Transducer'' that is held in your hand on the ultrasound machine.
What should you do before the scan?
Here's the good news! You don't need to do anything special to prepare for this scan. You can even have the scan done right when the doctor examines you, if he or she thinks there's something he or she needs to check.
Even if you schedule the scan on a different day, you don't need to make any changes to your daily routine. You can eat and drink normally, and take your medications.
However, since the doctor wants to see your neck clearly during the scan, it's best to wear loose, comfortable clothing . Also, don't wear jewelry around your neck, such as necklaces, that can't be easily removed.
What happens during the scan?
A thyroid ultrasound is a very quick and easy test. Here are some steps involved:
- You may need to take off your outer clothing and put on a hospital gown.
- You will be placed face down on an examination table (with your neck up).
- Then, the doctor or technician will apply a thin, watery gel to the area around your thyroid gland in your neck. This gel helps the scan to be done properly. It won't stain your skin or clothes.
- To keep your clothes from getting wet, put a small towel around your neck.
- Next, the doctor places the small handheld device (transducer) over the gel-coated area and presses it firmly. You may feel a little discomfort at this point, but it should not be so tight that it hurts.
- The transducer sends sound waves into your neck. When they hit the thyroid gland and bounce back, the doctor sees images of the thyroid on the scanner's display.
- The doctor may move the transducer to different places around the thyroid and take pictures from different angles.
- After all the desired pictures are taken, the gel applied to your neck will be wiped off.
That's it! Very simple, right?
How long does this scan take?
A thyroid ultrasound usually takes about 30 minutes from start to finish. However, this time can vary slightly depending on what the doctor is looking for and how many images of the thyroid need to be taken.
Is there any risk in this?
There are no risks or side effects!
This is the most important thing. Having a thyroid ultrasound will not harm you. The sound waves used in the test are harmless. You can't hear them or feel them. They can't harm your body in any way.
The gel on your neck may feel a little cold at first, but it's nontoxic and won't harm your skin.
What does this scan show?
A thyroid ultrasound can clearly see your thyroid gland and any abnormal growths or changes around it. It can also check to see if your thyroid gland is larger than normal.
What are the thyroid ultrasound results?
Once the scan is complete, the doctor will tell you whether the results are normal or abnormal.
- A normal result means that your thyroid gland and everything around it is as it should be, there are no problems, and the thyroid is also of normal size.
- An abnormal result means that the doctor saw something out of the ordinary. But it doesn't mean that the doctor found anything serious. It just means that he or she has something to look into further. Abnormal results can include things like:
- There are any lumps or growths on or around the thyroid gland.
- There is inflammation around the thyroid gland. That is a condition called ``Thyroiditis''.
- Your thyroid gland is larger than it should be.
You may see something called a ``TI-RADS score'' on your test report. This is used to classify thyroid nodules and help doctors decide what to do next.
Your doctor will help you understand your test results. He or she will tell you what happens next and whether any further tests or treatments are needed.
Can this tell for sure if there is cancer?
No, a thyroid ultrasound alone cannot definitively confirm the presence of cancer. However, it can help your doctor see if there are any new lumps or changes in existing lumps in the thyroid gland.
If the ultrasound shows something suspicious that could be thyroid cancer, your doctor will order further tests, especially a thyroid biopsy . A biopsy is the only way to tell for sure whether a lump is cancerous or not by taking cells from the lump.
When should I see a doctor?
If you notice any pain, changes, or swelling in your neck, see a doctor immediately. Be sure to tell your doctor , especially if you see any swelling around your thyroid gland.
In addition, there are other symptoms that may indicate a thyroid problem. These include:
- Dysrhythmia - This means an irregular heartbeat.
- Depression or Anxiety.
- In women, irregular menstrual cycles.
- Feeling changes in temperature (cold and heat) more than usual.
- Unexplained weight loss or weight gain.
If you have symptoms like these, it is very important to talk to a doctor.
So, a few final things to remember
Aside from applying that cold gel to your neck, a thyroid ultrasound is actually quite simple. It's a quick, painless test. And, it can help your doctor diagnose a variety of problems that could be affecting your thyroid gland.
There are no risks, side effects, or complications with a thyroid ultrasound. All you have to do is wipe off the gel afterwards!
So, if you are asked to have this scan, don't be afraid at all. If you need further tests or treatment, your doctor will explain everything to you and help you face those things with confidence.
` Thyroid, ultrasound, scan, neck, tonsils, thyroid nodules, health tests
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