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Doctor insights on: Can A Blood Test Detect Breast Cancer

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Could breast cancer show up on a blood test?

Could breast cancer show up on a blood test?

No: Breast cancer does not show up on a blood test. Breast cancer is diagnosed by biopsy of abnormal breast lesions seen on mammogram or biopsy of a breast lump. ...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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Is it possible for breast cancer to show up on a blood test?

Is it possible for breast cancer to show up on a blood test?

No: As of today, all blood tests looking for tumor markers, that is molecules representing the tumor, that are shed into the blood stream are carbohydrate in origin. Ie. Ca 125, ca 19.9 are markers with the ca prefix represent carbohydrate antibody, such markers are seen in many tumors and many cases of organ inflammation. As such they can only be used for monitoring. ...Read more

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After finding a breast lump, i had a blood test that came back normal. Is it still possible to have breast cancer?

After finding a breast lump, i had a blood test that came back normal. Is it still possible to have breast cancer?

Yes! Yes! Yes!: There is not a blood test to detect breast cancer. If there is an abnormal lump, you need a mammogram and ultrasound and then a biopsy to make a diagnosis. Only a biopsy, which is taking a sample of the lump, can determine if you do or do not have breast cancer. A biopsy can be done with a needle and results obtained in 24-72hours. See a breast specialist for evaluation-do not delay! ...Read more

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After finding a breast lump, i had a blood test that came back with normal blood count, is it still a possibility to have breast cancer?

After finding a breast lump, i had a blood test that came back with normal blood count, is it still a possibility to have breast cancer?

Blood tests don't he: No blood tests would help to diagnose breast cancer. The only way to diagnose cancer is biopsy of the lump once it is confirmed to be real on an x-ray(mammogram). So you are advised to find a doctor who knows how to investigate a lump in breast , which most dcotors do. But a physical exam is the first step in order to decide if an x-ray or ultrasound is needed. Any palpable lump requires biopsy. ...Read more

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I'm stage 4 Breast cancer. Been having pain in ribs/ shoulder for 2 mths. Also cancer antigen 27. 29 blood test is back above normal. Is cancer back?

I'm stage 4 Breast cancer. Been having pain in ribs/ shoulder for 2 mths. Also cancer antigen 27. 29 blood test is back above normal. Is cancer back?

See your oncologist.: Stage IV describes invasive breast cancer that has spread beyond the breast and nearby lymph nodes to other organs of the body, such as the lungs, distant lymph nodes, skin, bones, liver, or brain. Talk to your oncologist to determine the extent/ or remission of the cancer. Stage 4 usually means that cancer was not just in the breast area. ...Read more

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I am a breast cancer survival - do I need to do the tumour markers blood test -ca153, ca19.9, ca12.5, cea, afp?

I am a breast cancer survival - do I need to do the tumour markers blood test -ca153, ca19.9, ca12.5, cea, afp?

Generally no: Standards of care in the us do not recommend routine tumor marker testing in cancer survivors (we usually do ca 27.29 for breast cancer). Markers are mostly useful to assess response to therapy in patients with advanced cancer. That said, many oncologists (myself included) will sometimes order routine markers in cancer survivors depending on the circumstances. ...Read more

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Is it common for people who are using herceptin (trastuzumab) as a breast cancer treatment to have raised liver blood test readings?

Not usually: Herceptin (trastuzumab) is a pretty safe drug. As far as i know it does not affect liver functions. But many other drugs including chemotherapy can increase the liver enzymes. You should ask you oncologist to confirm it with the drug manufacturer or from a drug information source. ...Read more

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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. Mark Hoepfner
1,028 doctors shared insights

Breast Carcinoma (Definition)

Breast carcinoma is a type of cancer where this uncontrolled growth of breast cells. Symptoms can include breast lumps, pain, and weight ...Read more