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Adrenal Imaging: What You Need to Know

headshot of Dr. Linda Khoshaba on a white background

Dr. Khoshaba

September 17, 2024

Understanding your health is important, especially when it comes to your adrenal glands, which play a big role in how your body works. It's essential to know how they're examined if something goes wrong. 

In this blog, we'll break down adrenal imaging—how it's done, why it's important, and what to expect. We'll also answer some common questions you might have about the process.

What Are the Adrenal Glands and What Do They Do?

Before jumping into the imaging part, let's get to know the adrenal glands better. Your adrenal glands are small, triangular-shaped glands that sit on each kidney. 

Even though they're small, they have a big job. These glands produce hormones that help control your metabolism (how your body uses food for energy), immune system (how your body fights sickness), blood pressure, and stress response.

This image shows the adrenal glands and their hormones: Cortisol, Adrenaline, and Aldosterone.

Some of the key hormones produced by the adrenal glands include:

  • Cortisol: Helps control blood sugar levels, manage stress, and reduce inflammation.
  • Adrenaline: Prepares your body for a "fight or flight" response during stressful situations.
  • Aldosterone: Helps regulate blood pressure by controlling the balance of salt and water in your body.

Why Is Adrenal Imaging Important?

Adrenal imaging is a way for doctors to examine your adrenal glands to ensure they're healthy closely. Because these glands are so important to your overall health, catching any problems early is crucial. Imaging can help detect tumors, cysts, or other issues that affect how your adrenal glands work.

What Does an Adrenal Scan Show?

An adrenal scan can show important information about your adrenal glands. It can reveal if there are any tumors, cysts, or abnormal growths. 

It can also show the size and shape of the glands, which can help doctors determine if they're functioning properly. In some cases, an adrenal scan can also show how well the glands produce hormones.

What Is the Normal Imaging of the Adrenal Glands?

When doctors look at images of the adrenal glands,  they look like an upside-down "V" or "Y" and are located in front and slightly above the kidneys, in an area behind the abdominal organs. The right adrenal gland is usually near the liver, while the left is closer to the stomach and spleen. 

In normal imaging, the adrenal glands should be similar in size and shape, with no unusual growths or masses.

What Are the Imaging Techniques for Adrenal Lesion Characterization?

This image shows imaging techniques for adrenal lesions: CT Scan, MRI, Adrenal Scintigraphy, and Ultrasound.

There are several imaging techniques used to look at the adrenal glands, each with its strengths:

  • CT Scan (Computed Tomography): This is often the first imaging test used because it provides detailed pictures of the adrenal glands. It can help identify tumors, cysts, and other abnormalities.
  • MRI (Magnetic Resonance Imaging): MRI is useful for looking at anything abnormal more closely on a CT scan. It's especially good for differentiating between different types of adrenal issues.
  • Adrenal Scintigraphy (Nuclear Medicine Scan): This technique is used to assess the function of the adrenal glands, not just their structure. It's helpful when doctors need to know how well the glands are working.
  • Ultrasound: While not as common as CT or MRI, ultrasound can be used to see the adrenal glands, especially if they're enlarged. However, it's not as detailed as other imaging methods.

What Is the Best Imaging for Adrenal Hyperplasia?

Adrenal hyperplasia is a condition where the adrenal glands are larger than normal. The best imaging for diagnosing this condition is usually an MRI scan. 

MRI provides detailed images that can help doctors see the size and structure of the adrenal glands clearly. In some cases, a CT scan might also be used, especially if the MRI is not available.

Signs of Potential Adrenal Gland Issues

This image shows signs of adrenal gland issues: fatigue, high blood pressure, weight changes, and skin changes.
  • Fatigue: Unexplained, persistent fatigue that doesn't improve with rest could indicate adrenal insufficiency.
  • High Blood Pressure: Adrenal issues can cause high blood pressure due to the overproduction of certain hormones.
  • Weight Changes: Unexplained weight gain or loss, especially around the abdomen, can be linked to adrenal gland disorders.
  • Skin Changes: Darkening of the skin or stretch marks can sometimes indicate issues with the adrenal glands.

You must talk to your doctor if you notice any of these symptoms. They might order blood or urine tests to check for abnormal hormone levels. If these tests indicate a potential problem, imaging tests like a CT scan or MRI will likely be the next step.

Diagnosing Adrenal Gland Disorders

Diagnosing issues with the adrenal glands usually involves a combination of blood tests, urine tests, and imaging studies. Here's how it typically works:

  • Blood and Urine Tests: These tests check for abnormal levels of adrenal hormones. If something is off, it might indicate a problem with the adrenal glands.
  • Imaging Tests: If blood or urine tests suggest an issue, imaging tests like CT scans, MRIs, or adrenal scintigraphy are used to take a closer look.
  • Biopsy: In rare cases, if imaging shows a suspicious mass, a biopsy might be performed. This involves taking a small sample of tissue from the adrenal gland to be examined under a microscope.

How to Prepare for Adrenal Imaging

If you have an adrenal imaging test coming up, here are a few tips to help you prepare:

  • Follow Your Doctor's Instructions: Your doctor will give you specific instructions on how to prepare. This might include fasting (not eating) before the test, especially if you have a CT or MRI scan.
  • Wear Comfortable Clothing: You might need to change into a hospital gown for the scan, so wear something easy to take off and put on.
  • Stay Calm: Feeling nervous is normal, but try to stay calm. The imaging tests are usually quick and painless.

Conclusion

Understanding adrenal imaging is an important part of taking care of your health, especially if you're experiencing symptoms that could be related to your adrenal glands. Whether through a CT scan, MRI, or another type of adrenal imaging, these tests help your doctor see what's happening inside your body and determine the best way to help you.

If you have questions or concerns about your adrenal health, don't hesitate to talk to your healthcare provider. Early detection and proper diagnosis are key to keeping your adrenal glands and whole body healthy. Remember, the more you know about your health, the better you can care for yourself.

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Dr. Linda Khoshaba is the Leading Integrative Health and Hormone Doctor in Scottsdale, Arizona. She has extensive experience working in the field as a Hormone Specialist and Natural Endocrinologist.

Phone: 480-687-0054
Fax: 833-605-1101
Email: contact@nesaz.com
Address: 
Suite A 109
7500 E. Pinnacle Peak Rd. 
Scottsdale, AZ 85255

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