4 doctors weighed in:

Can a benign tumor become malignant over time? I had a mass on my thyroid checked out about 4 years ago, and the biopsy turned out clean. Now it appears the mass has grown. Haven't had a second biopsy yet, but was wondering if a mass that was once determi

4 doctors weighed in
Dr. Stanley Schwartz
Internal Medicine - Endocrinology
2 doctors agree

In brief: Yes

Growth worrisome, that's why they recommend re-biopsy.

In brief: Yes

Growth worrisome, that's why they recommend re-biopsy.
Dr. Stanley Schwartz
Dr. Stanley Schwartz
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Dr. Geoffrey Rutledge
Internal Medicine

In brief: A

A benign tumor is a tumor that lack the ability to spread or 'metastasize.
' most benign tumors will not cause problems. Some tumors have abnormal cell growths made up of several sub populations of cells, which can later give rise to a malignant cell growth. So yes, a benign tumor can give rise to a malignant tumor. Any changes to your existing tumor (such as growth) needs to be assessed by a doctor to investigate if the new growth is cancerous.

In brief: A

A benign tumor is a tumor that lack the ability to spread or 'metastasize.
' most benign tumors will not cause problems. Some tumors have abnormal cell growths made up of several sub populations of cells, which can later give rise to a malignant cell growth. So yes, a benign tumor can give rise to a malignant tumor. Any changes to your existing tumor (such as growth) needs to be assessed by a doctor to investigate if the new growth is cancerous.
Dr. Geoffrey Rutledge
Dr. Geoffrey Rutledge
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