Breast Lumps: What to Know About Fibroadenomas and Lymph Nodes

Breast lump

A small hard lump the size of a peanut was found under my left breast.
After undergoing a breast ultrasound, the doctor indicated that it is likely a benign fibroadenoma measuring about 0.6 cm, and that it can be monitored.
However, I was still concerned and opted for a local anesthesia minor surgery for a biopsy.
I feel that when I raise my left arm, the lymph nodes in my left armpit seem slightly swollen compared to the right side, but there is no pain.
I am very worried and currently waiting for the pathology report.

Xiao Ting, 30~39 year old female. Ask Date: 2017/07/19

Dr. Chen Jiaming reply Surgery

Since the biopsy has already been done, let's wait for the report before worrying too much.
Additionally, self-examination of the armpit is to check for any lymph nodes (lumps) rather than comparing the size of the areas on both sides of the armpit (sometimes it’s just more subcutaneous tissue).
Furthermore, during a breast ultrasound, it is common practice to also check for any abnormalities in the axillary lymph nodes.
If you were not informed of any issues at that time, it is likely that no abnormalities were found, so try not to scare yourself.
^^

Reply Date: 2017/07/19

More Info

When it comes to breast lumps, particularly those identified as fibroadenomas, it's essential to understand both the nature of these lumps and the implications of any associated lymph nodes. Fibroadenomas are benign tumors composed of both glandular and stromal (connective) tissue. They are typically smooth, firm, and mobile, and they can vary in size. In your case, the lump measuring approximately 0.6 cm in the left breast is likely a fibroadenoma, especially since your doctor has indicated it appears benign based on ultrasound findings.

The fact that your doctor suggested observation is common for small fibroadenomas, particularly if they are asymptomatic and not growing. Regular monitoring through follow-up ultrasounds can help ensure that the lump remains stable. However, your decision to undergo a local anesthesia biopsy for further evaluation is also a reasonable choice, especially if you have concerns about the lump's characteristics or if it has changed in any way.

Regarding your observation of slight swelling in the lymph nodes under your left arm, it’s important to note that lymph nodes can react to various stimuli, including infections, inflammation, or benign conditions. A mild enlargement of lymph nodes does not automatically indicate malignancy, especially if there is no associated pain or other concerning symptoms. However, it is prudent to have this evaluated, particularly in the context of your breast lump.

Once your pathology report is available, it will provide crucial information regarding the nature of the lump and whether there are any signs of malignancy. If the report confirms that the lump is indeed a benign fibroadenoma, and if the lymph nodes show no signs of cancer, you may be reassured that there is no immediate cause for concern. However, if there are any atypical findings, further investigation may be warranted.

In terms of next steps, if the pathology report indicates a benign fibroadenoma, you may continue with routine monitoring. If there are any atypical cells or signs of malignancy, your healthcare provider may recommend additional imaging or possibly a referral to a specialist for further evaluation and management.

It’s also worth mentioning that if there are any changes in the size or characteristics of the lump, or if you experience any new symptoms such as pain or changes in the skin over the lump, you should contact your healthcare provider promptly.

In summary, while the presence of a fibroadenoma and mildly enlarged lymph nodes can be concerning, many cases are benign and manageable with observation. The key is to await the pathology results and maintain open communication with your healthcare provider regarding any concerns you may have. Regular follow-ups and monitoring are essential in managing breast health, and your proactive approach to seeking a biopsy demonstrates a commitment to your health and well-being.

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