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Doctor insights on: Difference Between Thyroid Nodule And Thyroid Cyst

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What is the difference between thyroid nodule and thyroid cyst?

What is the difference between thyroid nodule and thyroid cyst?

See answer: A cyst is an encapsulated fluid filled structure – a nodule is a complex or solid lesion. ...Read more

Cyst (Definition)

A cyst is a structure or mass that consists of a cellular lined sac. It is typically filled with fluid but may be filled with solid material. It can be congenital, traumatic, or acquired. They may develop nearly anywhere in the body and usually require complete excision for eradication or they are likely to recur. Fluid filled sacs that are not cellular lined ...Read more


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I have thyroid cyst what should I do?I also hv mild nodule n goiter.

I have thyroid cyst what should I do?I also hv mild nodule n goiter.

Size matters: If the size of your thyroid is causing you symptoms of compression (pressure, pain, difficulty breathing or swallowing), then i would recommend that you have your thyroid removed. If any nodule is > 1cm then it should be biopsied. Otherwise, just observe with yearly or every other year ultrasound. ...Read more

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I am hpv+ and I have painless thyroid cyst with painful active nodules recently noted.What should I do?

I am hpv+ and I have painless thyroid cyst with painful active nodules recently noted.What should I do?

Get evaluated: The painful nodules have nothing to do with your HPV status. You need to get in soon to have this evaluated before things get bad. ...Read more

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Is it dangerous to have cmplex thyroid cyst with nodule and slight goiter?

Is it dangerous to have cmplex thyroid cyst with nodule and slight goiter?

Worth checking: If the size of your thyroid is causing you symptoms of compression (pressure, pain, difficulty breathing or swallowing), then i would recommend that you have your thyroid removed. If any nodule is > 1cm then it should be biopsied. The complex cyst should be biopsied if there is any solid component. It may also be drained under ultrasound (us). Otherwise, just observe with yearly us. ...Read more

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I have several heterogeneous thyroid nodules and cysts with 7mm biggest in size. what does this indicate?

I have several heterogeneous thyroid nodules and cysts with 7mm biggest in size. what does this indicate?

Common. Don't worry: Many people have nodules as they get older. Don't worry about them if they are less than 1cm in size. When and if they get bigger, then we biopsy the solid ones and aspirate the fluid with a needle. ...Read more

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Is it normal for one complex thyroid nodule on the left lobe to turn in to multiple complex cysts on the opposite lobe over the span of one year?

Multiple nodules: This is a common way for a multinodular goiter to begin. Nobody really understands it. The key is good cancer surveillance, and your being aware that if the radiologist can offer reassurance, serious disease is unlikely to develop. ...Read more

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Right thyroid cysts. dominant mid pole left predominantly solid left thyroid nodule subcentimeter solid upper pole left nodule. what does this mean?

Right thyroid cysts. dominant mid pole left predominantly solid left thyroid nodule subcentimeter solid upper pole left nodule. what does this mean?

Thyroid cyst- benign: The nodule in left upper pole, which is solid in nature, did they do any blood test to r/o excess thyroid hormone secretions?Thyroid cysts are benign fluid collections most of the time from degeneration of cells (dead cells in a particular area). The nodule needs to be followed up to r/o thyrotoxicosis, possible malignancy. Fine needle Biopsy, Radioactive Iodine uptake study will r/oabove condns. ...Read more

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I was told that my ultrasound showed a cyst on my thyroid nodule, could that be causing my on & off, but lately, more frequent hoarse/gravely voice?

I was told that my ultrasound showed a cyst on my thyroid nodule, could that be causing my on & off, but lately, more frequent hoarse/gravely voice?

Unlikely: A thyroid nodule needs to be quite large to compress the recurrent laryngeal nerve to cause vocal cord dysfunction and hoarseness. It is possible , but there is probably some other cause. See an ENT for laryngeal exam with fiberoptic or video stroboscopic exam. ...Read more

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I had a lump on my thyroid, doctors said it was thyroid nodule I have biopsy done and its was a epidermoid cyst. but I dont think its that. any suggs?

I had a lump on my thyroid, doctors said it was thyroid nodule I have biopsy done and its was a epidermoid cyst. but I dont think its that. any suggs?

Epidermoid cyst: Is there reason to doubt the pathology report? It provided a specific histologic diagnosis of an entity that can be found in the thyroid region? ...Read more

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I have a 3mm thyroid nodule (cyst). Labs are normal. I still have all the symptoms of hypothyroidism. Doc says to come back in 6 months. Help.

I have a 3mm thyroid nodule (cyst). Labs are normal.  I still have all the symptoms of hypothyroidism.  Doc says to come back in 6 months. Help.

Doc is correct: A 3 mm thyroid cyst has no clinical significance. Symptoms of hypothyroidism are nonspecific and generally common in the population (especially fatigue and weight gain). If your thyroid levels are normal, there is likely a different cause for your symptoms. ...Read more

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1.5 cm thyroid Nodule diagnosed by FNA as indeterminate. having 2nd FNA in 4 wks for some kind of genetics testing. cysts & another nodule. Cancer?

1.5 cm thyroid Nodule diagnosed by FNA as indeterminate. having 2nd FNA in 4 wks for some kind of genetics testing. cysts & another nodule. Cancer?

Maybe: Glad you are getting it repeated. Usually these are slow growers and if you comply with instructions when you get your results, you will probably be okay. ...Read more

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Can cystic thyroid nodule be cancerous?

Can cystic thyroid nodule be cancerous?

Unlikely but ask doc: Most of the the thyroid nodules are benign, cystic nodules are even more benign, but sometimes a small focus of cancer could be inside the cyst, to be sure most of the time after fine needle aspiration (fna) will be done by your doctor send for biopsy ( cytology ) to be sure it is benign.. ...Read more

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I have bilateral partially cystic thyroid nodules.Biopsy done of the larger one, came back "follicular lesion of unknown origin" what does that mean?

Variable meaning: Follicular‐patterned lesions of the thyroid are common; these include hyperplastic/adenomatoid nodules, follicular adenoma, follicular carcinoma and follicular variants of papillary carcinoma. Repeat biopsy with a sample sent for a genetic afirma assay may give additional useful information. In addition, discuss with your endocrinologist. ...Read more

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I have a tyroid nodule, 1.6 x .9 x 3 cm. heterogeneously attenuating predominantly cystic right thyroid nodule. What's it mean and could it be cancer?

I have a tyroid nodule, 1.6 x .9 x 3 cm. heterogeneously attenuating predominantly cystic right thyroid nodule. What's it mean and could it be cancer?

Thyroid: Its highly unlikely to be cancer. The odds favor this being a thyroglossal duct cyst. Pts often present at you age. You don't say where exactly your mass is. TDC is usually near midline. Another possibility is a branchial cleft cyst which is also a congenital problem. Your docs may want to do a CT guided fine needle biopsy. Hang in there. I think you will be fine. ...Read more

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What is a innocuous and isoechoic thyroid nodule. Also what is a heterogenous nodule with tiny cystic spaces, it measures 0.7cm?

What is a innocuous and isoechoic thyroid nodule.

Also what is a heterogenous nodule with tiny cystic spaces, it measures 0.7cm?

Hard to say: It's hard to say without seeing the actual images. An isoechoic nodule is typically nonspecific and potentially falls in the indeterminate range (ie need follow up or biopsy). Same thing for a heterogenous "nodule" with tiny cystic spaces. A "complex cyst" with tiny cystic spaces can be a sponge like cyst that is typically benign. ...Read more

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I have a solid and cystic thyroid nodule (.9 x .7 x .5 cm). how long is normal to wait before a follow up ultrasound?

I have a  solid and cystic thyroid nodule (.9 x .7 x .5 cm). how long is normal to wait before a follow up ultrasound?

Thyroidologist: Your thyroidologist, endocrinologist, or thyroid surgeon is best qualified to answer this question. He or she ,who has examined and evaluated you, would sit down with the radiologist who interpreted your ultrasound and determine the best interval between your ultrasound and the next one and whether a needle biopsy is advisable at that time ...Read more

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I just had fna done on 1 of 3 thyroid nodules and report say 3cm heterogeneous soild nodule w/small cystic components, what does this mean?

I just had fna done on 1 of 3 thyroid nodules and report say 3cm heterogeneous soild nodule w/small cystic components, what does this mean?

Microscopic?: This report represents the gross pathologic findings but the microscopic. Microscopic results will define whether cells are benign or malignant. Usually the solid part of the nodule has the answer.Need further information. ...Read more

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What does this diagnosis mean, Left thyroid: cystic lesion with hemosiderin-laden macrophages. its my cytology report from a thyroid nodule.

What does this diagnosis mean, Left thyroid: cystic lesion with hemosiderin-laden macrophages. its my cytology report from a thyroid nodule.

Probable benign: Most cystic lesions and not pure cysts usually respresent breakdown and hemmorhage into a benign neoplsm. The presence of macrophages and hemosiderin suggest some form of inflammatory condition such as Hashimoto's thryoiditis. Unless there are changes on physical and thyroid scan suggesting further growth, conservtive management is suggested. ...Read more

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.6mx.5mmx.3.4mm cystic thyroid nodule which is hypoechoic . Cancer risk ? Grow .2mm since 1,5 years. Really worrying thats hypoechoic please explain

.6mx.5mmx.3.4mm cystic thyroid nodule which is hypoechoic . Cancer risk ? 
Grow .2mm since 1,5 years. Really worrying thats hypoechoic please explain

Likely benign: Cystic hypoechoic nodule is usually benign particularly without solid components.However some malignant tumors have cystic components. 0.2mm growth in 11/2 years is slow growth.Most malignant tumors grow faster. Most nodules less than 1 cm are not biopsied. Most small nodules are usually benign. You are correct in getting follow up US exams. Hyperechoic lesions are denser sometimes with calcium. ...Read more

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I m 27y.O now with solitary right thyroid nodule for 2 yrs. Tsh normal, fnac- cystic degenaration. Ultrasound- 33x26x23mm.Should it b removed?

I m 27y.O now with solitary right thyroid nodule for 2 yrs. Tsh normal, fnac- cystic degenaration. Ultrasound- 33x26x23mm.Should it b removed?

Not unless symptoms: Since the biopsy showed no cancerous cells, you can leave it alone unless it is continuing to grow larger or you develop symptoms affecting your speech or swallowing. Also, we are presuming that the biopsy targeted the correct area and the pathologist read the sample tissue accurately. ...Read more

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Hello i recently found a lump on my neck i went for ultra sound and it confermed a thyroid nodule size 2cm by 3 CM non cystic and hypervascular ?

Hello i recently found a lump on my neck i went for ultra sound and it confermed a thyroid nodule  size 2cm by 3 CM non cystic  and hypervascular  ?

Biopsy: Hi. Assuming your thyroid function is normal (not hyperthyroid), the thyroid nodule you describe needs fine needle aspiration biopsy for cytology (and hopefully genetic testing) to see if it's cancer. If it's not cancer, you can leave it in and just follow it, and thus avoid surgery for a non-cancerous tumor. I have to assume that whoever ordered the ultrasound has told you that you need FNAB. ...Read more

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Known thyroid nodule , colloid area recurrent cysts , now pressure/pulling on neck especially lifting arm?

Known thyroid nodule , colloid area recurrent cysts , now pressure/pulling on neck especially lifting arm?

Surgery: Now that your thyroid is causing you symptoms, i would advise you to consult with a surgeon about having your thyroid gland removed. ...Read more

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I had a neck CT scan an it showed that I now have numerous thyroid nodules and a cyst. Since I'm having compressive symtoms do I need to have surgery?

Probably: The tyroid gland sits right on top of the larynx, trachea. As it enlarges due to the formation of multiple nodues, if they are not large and no compressive symptoms occur, one treats conservatively, possibly using hormone replacement if needed. If too large some form of cytoreduction may be needed. ...Read more

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Seen Endocrinologist have one .5cm partly cystic and party soild thyroid nodules no blood flow, went to recheck in 6 months what's next?

Thyroid nodules: TN are very common and largely benign. You benefit from monitoring, if they grow they will be further evaluated or removed before something ominous happens. Your thyroid blood levels will be checked, you may need thyroid replacement. Mostly, thyroid nodules are low risk health issue. Be well. ...Read more

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I have a 8mm thyroid cyst with some septations. What does this mean? What are septations?

I have a 8mm thyroid cyst with some septations. What does this mean? What are septations?

Walls: Septations are walls in the cyst that are benign. You should not have to worry about these results unless your health care provider says differently. ...Read more

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What does a thyroid cyst with reactive lympnodes mean?

What does a thyroid cyst with reactive lympnodes mean?

Usually benign: Thyroid cyst is benign lesion, contains mainly fluid. Reactive nodes are inflammatory and reacting to some type of inflammation. Thyroid cancer can be associated with nodes containing metastatic tumor cells. Nethertheless you should have follow up scan in 3-6 months to make sure things remain stable. Sometimes cancer can have sone cystic components. ...Read more

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Can a thyroid cyst less than 1 cm cause blood in saliva?

Can a thyroid cyst less than 1 cm cause blood in saliva?

No, but...: A true thyroid cyst does nothing and are just there. When they get big (not ...Read more

Nodule (Definition)

Any growth or deposit in the body or on its surface may be casually termed a nodule until its character is determined by the familiarity of the physician with it or by the results of a biopsy if it is not so obvious. The term is casual ...Read more


Dr. Jeffrey Satinover
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