15 doctors weighed in:
Can a fibroadenoma develop into cancer?
15 doctors weighed in

Dr. Devon Webster
Internal Medicine - Oncology
8 doctors agree
In brief: No
Fibroadenomas don't turn into breast cancer, which is a good thing because they are very common!

In brief: No
Fibroadenomas don't turn into breast cancer, which is a good thing because they are very common!
Dr. Devon Webster
Dr. Devon Webster
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4 doctors agree
In brief: Possibly
Fibroadenoma of which organ? If breast: not usually.
However, cancer can develop within the fibroadenoma and therefore you can have ductal carcinoma in situ or invasive carcinoma develop within the adenoma. The fibroadenoma, per se, though is not transforming. Fibroadenoma is on a spectrum with phyllodes tumor, the spectrum of which includes malignant phyllodes tumore.

In brief: Possibly
Fibroadenoma of which organ? If breast: not usually.
However, cancer can develop within the fibroadenoma and therefore you can have ductal carcinoma in situ or invasive carcinoma develop within the adenoma. The fibroadenoma, per se, though is not transforming. Fibroadenoma is on a spectrum with phyllodes tumor, the spectrum of which includes malignant phyllodes tumore.
Dr. Lester Thompson
Dr. Lester Thompson
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Dr. Liawaty Ho
Internal Medicine - Hematology & Oncology
2 doctors agree
In brief: Yes, small risk
Fibroadenomas are associated with a small increased risk of developing breast cancer, approximately 1.
5 to 2 times that of the general population. ( based on prospective study in benign breast cancer - published in jama and nejm).

In brief: Yes, small risk
Fibroadenomas are associated with a small increased risk of developing breast cancer, approximately 1.
5 to 2 times that of the general population. ( based on prospective study in benign breast cancer - published in jama and nejm).
Dr. Liawaty Ho
Dr. Liawaty Ho
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Dr. Murthy Andavolu
Internal Medicine - Hematology & Oncology
2 doctors agree
In brief: No
Fibroadenomas of the breast can remain for years without becoming cancerous.

In brief: No
Fibroadenomas of the breast can remain for years without becoming cancerous.
Dr. Murthy Andavolu
Dr. Murthy Andavolu
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In brief: But beware
In some patients a fibroadenoma can grow to a large size and become something called phylloides tumor. These are usually benign but have a "malignant potential.
" for this reason it is better to remove fibroadenoma tumors if they don't spontaneously regress after a woman passes her mid-twenties.

In brief: But beware
In some patients a fibroadenoma can grow to a large size and become something called phylloides tumor. These are usually benign but have a "malignant potential.
" for this reason it is better to remove fibroadenoma tumors if they don't spontaneously regress after a woman passes her mid-twenties.
Dr. Neria Hebbar
Dr. Neria Hebbar
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