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Doctor insights on: Is There A Correlation Between Breast Cancer And Thyroid Cancer

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Is there a correlation between breast cancer and thyroid cancer or other hormone conditions?

Is there a correlation between breast cancer and thyroid cancer or other hormone conditions?

Rarely: There is no correlation with hypo or hyperthyroidism. Very rarely, there can be families with breast and thyroid cancer, but these families are very rare. Neith cancer causes the other in a given individual. ...Read more

Dr. Barry Rosen
1,336 doctors shared insights

Breast Cancer (Female) (Definition)

Breast cancer results when glandular cells lining the milk ducts and lobules of the human breast begin to grow in an unregulated manner. The growth occurs initially inside the ducts but eventually breaks outside into the breast tissue and ultimately spreads both to the lymph nodes in the armpit and via the bloodstream to other parts of the body. Because of the promoting affect of estrogen almost all breast cancer occurs in women and is a rarity in men. The unregulated growth is due to both inherited and acquired genetic defects. It is the most common malignancy in women but it often curable if found early and treated effectively with surgery, hormonal therapy, chemotherapy and targeted therapy, or a combination thereof. Early detection before the malignancy becomes large enough to be felt depends on mammography/sonography and MRI imaging of the breast on an annual basis. ...Read more


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Can thyroid cancer increase breast cancer risk?

Can thyroid cancer increase breast cancer risk?

Not usually: There are some families who have increased rates of a variety of cancers, including papillary thyroid cancer, breast cancer, and colon cancer. But having one does not cause an risk for another; instead inherited genes put a person at increased risk for both. A person with a history of thyroid cancer should be sure to get recommended mammograms and colon tests. ...Read more

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What type of chemo is used to treat thyroid cancer and if you had breast cancer and a sarcoma ?

None usually: The most common thyroid cancers such as papillary and follicular are treated with surgery followed by radioactive iodine. There are no chemotherapy agents that have been found to be effective for these thyroid cancers. One would consider being in a chemotherapy study if you had metastatic thyroid cancer that was not responding to radioactive iodine. ...Read more

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Dx breast cancer at 39, thyroid cancer at 40. Is a PET scan needed to rule out mets and am I at a risk for other cancers?

Genetic testing: You definitely need genetic counseling and testing. A complete family history will help direct this as well. There is no role for screening to look for metastatic disease if you are not known to have it. ...Read more

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What are the odds of having stage 2B invasive ductal carcinoma her2 positive breast cancer and papillary thyroid cancer at age 40?

What are the odds of having stage 2B invasive ductal carcinoma her2 positive breast cancer and papillary thyroid cancer at age 40?

Odds are low.: But it is still possible to have both. Risk of having papillary thyroid before forty is about 13/100,000. Risk of having breast Ca is about 11/100,000. The overlap of the two independent events is slightly less than 1 in a million. ...Read more

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Pap thyroid cancer size 7.5mm & invasive ductal breast cancer. ENT said should be ok to remove right half of thyroid only. Opinions?

Pap thyroid cancer size 7.5mm & invasive ductal breast cancer. ENT said should be ok to remove right half of thyroid only. Opinions?

That's fine: If a thyroid lesion is small and there are no nodes palpable and lesion is central in the lobe with a clean isthmus, the chance after a lobectomy of a new lesion forming is about 7%. A hemithyroidectomy here would be fine. ...Read more

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Over the past 18months my potassium levels keep dropping. Friday was 2.6. I have idc breast cancer & pap thyroid cancer also. Why would this happen?

Over the past 18months my potassium levels keep dropping. Friday was 2.6. I have idc breast cancer & pap thyroid cancer also. Why would this happen?

Multiple factors: Your potassium may be low for 3 different reasons. You may not be taking enough, losing it in your stool-diarrhea or urine due to the state of your kidney function or medications and sweating. Your magnesium may also be low and would prevent the correction of your potassium even with supplements. These are things to discuss with your physician to get to the cause. ...Read more

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Is it safe for breast cancer survivor to use victoza (liraglutide) for diabetes because the drug has thyroid cancer risk? I am worried.

Is it safe for breast cancer survivor to use victoza (liraglutide) for diabetes because the drug has thyroid cancer risk? I am worried.

Go ahead: The stuff causes overgrowth of c-cells in the thyroid in rodents, but the risk for humans is probably negligible / primarily in the minds of the lawyers. Nobody's got even a theoretical risk to breast cancer. ...Read more

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What happens if my friend has breast cancer and results of a biopsy of her thyroid shows cancer, what's her prognosis?

What happens if my friend has breast cancer and results of a biopsy of her thyroid shows cancer, what's her prognosis?

Probably separate: Hi. The breast cancer and thyroid cancer are probably unrelated. I've never seen breast cancer metastasize to thyroid. Thyroid cancer generally has a high cure rate. It's not fair she's had these cancers but life isn't fair. I bet the thyroid cancer with treatment will go well. I hope the breast cancer is in remission. She might outlive us all! :-) ...Read more

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Can you tell me if my friend has breast cancer and results of a biopsy of her thyroid shows cancer, what's her prognosis?

Can you tell me if my friend has breast cancer and results of a biopsy of her thyroid shows cancer, what's her prognosis?

Not sure: Hello- i'm not sure i understand the question. If your friend already has breast cancer and she now has thyroid cancer, the prognosis from her breast cancer does not change. Thankfully thyroid cancer usually has a good prognosis. She will need genetic counseling. Good luck. ...Read more

Dr. Barry Rosen
4,214 doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


Dr. Quang Nguyen
310 doctors shared insights

Thyroid Cancer (Definition)

Thyroid cancer arises in the thyroid gland. It usually presents as a painless thyroid nodule. Most are papillary-follicular type and have a very good prognosis. Less common are medullary cancers, with an intermediate prognosis. Anaplastic cancers of the thyroid have a poor prognosis and are uncommon. Treatment of thyroid cancers involves removal ...Read more