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Doctor insights on: Hypo Functioning Adenoma On Thyroid Nuclear Scan

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Thyroid ultrasound showed heterogenous echogenicity hypervascular thyroid. Thyroid labs normal. Any thoughts on what this is?

Thyroid ultrasound showed heterogenous  echogenicity hypervascular thyroid. Thyroid labs normal. Any thoughts on what this is?

See endocrinologist: It is unclear why these studies are being done, especially if thyroid blood tests are normal. You should see an endocrinologist to have him/her interpret these tests. That ultrasound is consistent with hashimotos thyroiditis. ...Read more

Dr. Guido Davidzon
26 doctors shared insights

Thyroid Nuclear Scan (Definition)

This scan involves taking orally a small dose of radioactive iodine. The iodine is taken up by the thyroid and produces an image. "cold" areas are places with no iodine uptake. "hot" areas have a lot of uptake. The radiologist also calculates the percent uptake of the iodine. This test is important in the diagnosis of hyperthyoidism, thyroid cancer, and follow ...Read more


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Test results are multinodular goiter so radionuclide thyroid scan?

Test results are multinodular goiter so radionuclide thyroid scan?

Need more info: Not sure what you mean by "test results" but u cannot know that u have multinodular goiter from a blood test. A thyroid ultrasound can give u this diagnosis in which case u will need a blood test called TSH to know what to do next. No thyroid scan needed unless the TSH is low. Thyroid ultrasound vs. Biopsy might be needed depends on the size and characteristics of the nodules but need more info. ...Read more

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Thyroid Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?have Hypo symptoms

Thyroid Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?have Hypo symptoms

Elevated: TPO levels are associated with autoimmune thryroid disease/thryoiditis, for example Hashimoto disease. The thyroid US findings are also consistent with thyroiditis. Talk to your doc about next steps. ...Read more

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Tsh level 5.58, no symptoms, u/s found 1cm subtle hypoechoic nodule w/increased peripheral vascularity. Pcp ordered rai uptake scan before fna. Why?

Tsh level 5.58, no symptoms, u/s found 1cm subtle hypoechoic nodule w/increased peripheral vascularity.  Pcp ordered rai uptake scan before fna.  Why?

I have no idea: Hi. It's not a hyperactive nodule...we know that from the TSH. I'd go straight to an FNA. The scan will show a "cold" nodule, which we already know it is, and will not help differentiate benign from cancer. FNA cytology (hopefully with gene testing) is all you need at this point. Good luck. ...Read more

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Low TSH Borderline low T4 normal t3 (liothyronine). Thyroid uptake scan..low uptake noted w\o nodules. Radiologist said HYPOTHYROIDISM?! All other possible test norm

Low TSH Borderline low T4 normal t3 (liothyronine). Thyroid uptake scan..low uptake noted w\o nodules. Radiologist said HYPOTHYROIDISM?! All other possible test norm

Need follow-up: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Having said that, there is inconsistency in your results. Both TSH and T4 being low does not add up. You may need to repeat the lab tests, not necessarily the scan, in about 6 months to see what direction these results are going in. ...Read more

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Thyroid sono showed heterogeneous gland with multinodular goiter(positive hashimoto's diagnosis;on synthroid)-follow up sono when?

Thyroid sono showed heterogeneous gland with multinodular goiter(positive hashimoto's diagnosis;on synthroid)-follow up sono when?

10---15 days: You have autoimmune hypothyroidism and need to to be seen by an endocrinologist , who want to be sure cold or hot nodules and act accordingly and adjust synthroid (thyroxine). ...Read more

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Thyroid swelling. Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test-normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?

Thyroid swelling. Ultrasound heterogenous thyroid parynchema with hypervascularity. Blood test-normal tsh t4 t3 (liothyronine) etc but >1300 TPo antibodies?

Hard to say: Ive yet to have anyone NOT have elevated TPo but I havent sent many. The standard answer would be that it likley is GRAVES disease starting but if there arent a lot of symptoms and the labs are normal you wouldnt give treatment. Retesting if symptoms and at about every 3 months. ...Read more

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Single hot 1 CM nodule on thyroid scan with normal thyroid blood panels & uptake. Chances of malignancy?

Single hot 1 CM nodule on thyroid scan with normal thyroid blood panels & uptake.  Chances of malignancy?

Not likely: "hot" nodules are rarely cancer and most often represent benign follicular adenomas. These are also known as "autonomous" nodules because they make thyroid hormone but don't respond to the body's normal signals telling them when to stop making the hormone. The vast majority of thyroid cancer nodules are "cold" on a thyroid scan. ...Read more

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Thyroid gland hyper functioning nodule right lobe multi nodular goiter. What does this all mean?

Thyroid gland hyper functioning nodule right lobe multi nodular goiter. What does this all mean?

Multinodular goiter: Hi. Your hyper-functioning nodule is producing thyroid hormone without pituitary regulation. Since you have multiple nodules, chances are they're all overproducing thyroid hormone (aka "hot" nodules). Your radio-iodine scan will tell. Any "cold" nodule of certain size will need to be evaluated to make sure it's not cancer (you may not have any cold nodules). Treatment with 131-Iodine is easy. ...Read more

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Thyroid U/S showed L thyroid gland heterogeneous hypoechoic nodule w/ mind internal vascularity. what does all this mean? FNA recommended.

Thyroid U/S showed L thyroid gland heterogeneous hypoechoic nodule w/ mind internal vascularity. what does all this mean? FNA recommended.

Means abnormal test: Ultrasound is a commonly used test for detection of Throid nodules which are quite common. So when the ultrasound shows a Thyroid nodule, it needs to be monitored and often a Biopsy is required to find out if the nodule is benign or cancerous. FNA is one such technique for obtaining a biopsy for making a diagnosis. ...Read more

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Thyroid ultrasound show mild diffused parenchymal hyper vasuclarity.3mm hyperechoic nodule in the lateral aspect in the left lobe thyroid normal > tsh?

Thyroid ultrasound show mild diffused parenchymal hyper vasuclarity.3mm hyperechoic nodule in the lateral aspect in the left lobe thyroid normal > tsh?

Possibly thyroiditis: Hypervascularity is a typical finding in people with underlying autoimmune thyroiditis (hashimoto's or graves disease). The 3 mm nodule is likely of no significance and can be watched. You need to know your TSH level. Getting thyroid antibodies (thyroid peroxidase, thyroglobulin antibodies) would be helpful in making a diagnosis. ...Read more

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Thyroid ultrasound shows heterogenous hypervascular echogenicity. No nodules. Thyroid labs were normal. Any ideas on what this is?

Thyroid ultrasound shows heterogenous hypervascular echogenicity. No nodules. Thyroid labs were normal. Any ideas on what this is?

What thyoid labs?: There are many thyroid labs and most docs do not check enough of them? This ultrasound is consistent with grave's disease and thyroiditis. With grave's standard thyroid tests would usually be abnormal but might look ok with thyroiditis. Please make sure anti-thyroid antibodies (anti-tpo and anti-thyroglobulin) have been checked, as well as free t3 (liothyronine) and reverse t3 (liothyronine). ...Read more

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Thyroid nodule of the right lobe. Fna indicated follicular lesion-also hypothyroid, family history of malignant thyroid nodules. Options?

Thyroid nodule of the right lobe. Fna indicated follicular lesion-also hypothyroid, family history of malignant thyroid nodules. Options?

Surgery or...: A repeat biopsy combined with an afirma assay test may give you somewhat better guidance, but with your history and risk factors, surgery may be the best option. By the way, why are you taking generic T4 an Armour Thyroid together? There is no way to monitor the dosage properly as the lab tests will be unreliable. Brand name T4 is better, safer and more reliable. ...Read more

Dr. John Choi Dr. Choi
4 doctors agreed:
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What hetergenous hyperechoic thyroid nodules measuring 1.0 and 1.5 on left lobe. ?

Dr. John Choi Dr. Choi
4 doctors agreed:

Thyroid nodule: Its means the cells are of different texture or type on imaging. I recommended a visit to an ENT - ear, nose, and throat or endocrine doc. Sounds like you need a biopsy, called a FNA. ...Read more

Dr. John Chiu Dr. Chiu
5 doctors agreed:
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What does it mean to have high tpo antibodies but Normal tsh t4 t3 (liothyronine) function? Enlarged thyroid-US heterogenous thyroid parenchyma with hypervascularity

Dr. John Chiu Dr. Chiu
5 doctors agreed:
What does it mean to have high tpo antibodies but Normal tsh t4 t3 (liothyronine) function? Enlarged thyroid-US heterogenous thyroid parenchyma with hypervascularity

Thyroiditis: You likely have thyroiditis (autoimmune)in its early stage and you need to consult your doctor for Rx and monitor. ...Read more

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What should you eat when you have hyper thyroidism?

What should you eat when you have hyper thyroidism?

Hyperthyroidism: There are no food that reverse hyperthyroidism or make it worse. ...Read more

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What is the definition or description of: thyroid nuclear scan?

What is the definition or description of: thyroid nuclear scan?

Thyroid scan: This scan involves taking orally a small dose of radioactive iodine. The iodine is taken up by the thyroid and produces an image. "cold" areas are places with no iodine uptake. "hot" areas have a lot of uptake. The radiologist also calculates the percent uptake of the iodine. This test is important in the diagnosis of hyperthyoidism, thyroid cancer, and follow up of thyroid cancer. ...Read more

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What does abnormal uptake on a thyroid nuclear scan mean?

What does abnormal uptake on a thyroid nuclear scan mean?

Several things: The result of a thyroid uptake test could be abnormally increased or decreased. In the usa, the normal thyroid uptake range is approximately 10-30% at 24 hours. An increased result may be due to various reasons including: grave's disease, multinodular toxic goiter or hashitoxicosis. A decreased uptake could be due to subacute thyroiditis, iodine or amiodarone induced thyrotoxicosis among others. ...Read more

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Question on thyroid nuclear scan - do you stay radioactive for a while?

Usually 2 days: Half life for radiotracers used to image thyroid is 6 hours for Tc99m pertechnetate and 13 hours for Iodine 123. Usually two days after dose, no appreciable residual activity. ...Read more

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How long do I have to be on a low iodine diet for thyroid nuclear scan?

How long do I have to be on a low iodine diet for thyroid nuclear scan?

2 weeks: A low-iodine diet should usually be followed for 2 weeks prior to a thyroid whole-body scan. The rationale behind this is to reduce the chances of non-radiactive iodine (in food and table salt) to compete with the radioactive active iodine use for diagnosis (i-123) and treatment (i-131). ...Read more

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No salt (or just no iodinated salt) for thyroid nuclear scan?

No salt (or just no iodinated salt) for thyroid nuclear scan?

No iodinated salt: The thyroid uptake and scan measures the ability of your thyroid gland to accumulate a radioactive form of iodine (usually i-123). Table salt or seafood contain iodine (a non-radiactive one) that compete with the radioactive iodine use during the test and thus could falsely bias the results. You can use kosher salt which doesn't have the added iodine as in regular salt. ...Read more

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No risk for thyroid nuclear scan?

None.: The amount of tc99m or iodine given is a small dose and does not pose a health risk for a radioactive thyroid scan. ...Read more

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Is sea salt ok before thyroid nuclear scan?

Sometimes: Most scans in the us use radioiodine. In this situation, table salt which contains iodine will interfere with the scan; sea salt generally contains very little iodine and should not interfere much with the test. If you get a tc99m pertechnetate thyroid scan, which is more commonly used in europe, sea salt before the scan is ok. ...Read more

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Is thyroid nuclear scan a better test than ultrasound of the thyroid ?

Is thyroid nuclear scan a better test than ultrasound of the thyroid ?

Different no better: A thyroid nuclear uptake and scan is a functional test of your thyroid. It is useful in differentiating causes of thyrotoxicosis (excessive amounts of thyroid hormones in the body). A thyroid ultrasound is better to assess the anatomy of the thyroid gland and for guidance if biopsy is needed. ...Read more

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Is a thyroid nuclear scan considered to be a treatment or just a test?

Is a thyroid nuclear scan considered to be a treatment or just a test?

Just a test: A thyroid uptake and scan is used to aid the differential diagnosis of newly diagnosed thyrotoxicosis and ideally should use i-123 as the radiopharmaceutical (low energy isotope for testing). If the test shows increased thyroid function such as in grave's disease or multi-nodular goiter i-131 can be use to ablate the thyroid gland if this is desire. ...Read more

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Is thyroid nuclear scan a better investigation than ultrasound?

Different no better: A thyroid nuclear uptake and scan is a functional test of your thyroid. It is useful in differentiating causes of thyrotoxicosis (excessive amounts of thyroid hormones in the body). A thyroid ultrasound is better to assess the anatomy of the thyroid gland and for guidance if biopsy is needed. ...Read more

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Question on thyroid nuclear scan/ can I have it if I might be pregnant?

Question on thyroid nuclear scan/ can I have it if I might be pregnant?

Get a pregnancy test: If in doubt, the safest thing will be to get a pregnancy test before any testing that involves radiation. This is true for nuclear medicine or radiologic studies. ...Read more

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I just found out via nuclear scan that I have a 2cm heteoeneous nodule of the anterior right lobe of my thyroid. Is this something I should be worried?

Needs biopsy: Nodules in thyroid gland mostly benign. However nodule greater than 1 cm needs to be biopsied. Ultrasound would better characterize type of nodule cyst or solid. Usually needle biopsy by interventional radiologist or surgeon. Smaller nodules are watched periodically by ultrasound. ...Read more

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I have two thyroid nodgules 1.9cm and 2.1cm I have had nuclear scan and biopsy both came back noncancerous. What would be next treatment if get bigge?

I have two thyroid nodgules 1.9cm and 2.1cm I have had nuclear scan and biopsy both came back noncancerous.  What would be next treatment if get bigge?

If they grow: Hi. If the nodules get bigger, they should be needle biopsied again. Even if they stay the same size, some people would routinely biopsy again in a year or so. But grown is a definite need to re-biopsy. Good luck! ...Read more

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I had an ultrasound on my thyroid on 12/2 and today my dr office called and said they want me to go for a nuclear scan. Should i be worried?

Thyroid scan...: Did you have thyroid function tests (blood tests)? There are various reasons to order a thyroid scan. Thyroid scans can be helpful in diagnosing thyroiditis, graves disease, hyper functioning nodules, or thyroid cancer. Ultrasound shows the anatomy but thyroid scan shows the function. If they saw nodules on ultrasound, the thyroid scan will determine if the nodules are hyper/hypo functioning. ...Read more

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After having blood work an ultrasound for thyroid nodgel. My doc was a little worried so I had a nuclear scan done. Result normal? Wat does that mean

After having blood work an ultrasound  for thyroid nodgel. My doc was a little worried so I had a nuclear scan done. Result normal? Wat does that mean

Do not worry: The ultrasound study probably showed one or more nodular structures within the thyroid gland. These are mostly benign nodules, but a few are malignant. In the nuclear study, benign nodules take up the activity similar to normal thyroid tissue, and malignant do not, resulting in a cold area relative to the remainder of the gland. Apparently, you did not have a cold nodule. You only need watching. ...Read more

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I have a thyroid nodule. I've had blood work done an a ultrasound. The doc is a little worried now have to have a nuclear scan. Should I be worried?

Hyperthyroid?: Hi. For your nodule, unless you're hyperthyroid, the nuclear medicine scan will tell you NOTHING your doc doesn't already know from looking at your TSH and free T4. Assuming you're NOT hyperthyroid, the scan will show a "cold" nodule, which we already know if your TSH is normal. You need a fine needle aspiration biopsy for cytology to see if it's cancer. That's it. Then proceed from there. ...Read more

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5.58 TSH level a month ago with one hot nodule and normal thyroid uptake found on nuclear scan from friday. Not on hormone therapy. Please explain?

If you had a "hot": Nodule, your TSH would be low not high and your thyroid uptake would probably be elevated as well, the so-called nodule may be the only area of your thyroid that is functioning appropriately. Depending upon other factors and other lab, you may have had recent thyroiditis or may even need thyroid replacement. Check w/your doctor and/or consider a thyroid specialist. ...Read more

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My salivary scan found Sjogren's & a right thyroid adenoma. My TSH is 0.6. Ultrasound referral. Is this adenoma most likely benign and insignificant?

My salivary scan found Sjogren's & a right thyroid adenoma. My TSH is 0.6. Ultrasound referral. Is this adenoma most likely benign and insignificant?

Need more info: The thyroid nodule could be from numerous causes. The ultrasound is very appropriate as would blood tests involving thyroid hormone production. Occasionally , the nodule may even need a biopsy ...Read more

Dr. Guido Davidzon
113 doctors shared insights

Nuclear Scans (Definition)

From a cardiac perspective nuclear scans are performed with either exercise or medications to examine the blood flow in the heart. Before and at peak exercise the patient is given a radio tracer which travels in the blood to the heart. Pictures are take before and after exercise and compared to evaluate for any blockages in the ...Read more


Dr. Tanya Russo
13 doctors shared insights

Thyroid (Definition)

The thyroid is an endocrine gland that sits in the lower part of the neck. It produces thyroid hormone - which ...Read more