Breast Ultrasound Findings: Should You Worry About Cancer?

Breast examination

On April 20th of this year, a breast ultrasound revealed a 0.6 cm black spot.
The doctor advised against a biopsy for now and suggested a follow-up ultrasound in three months to monitor the spot's status.
On July 20th, a follow-up ultrasound showed that the spot had grown to 0.7 cm.
The doctor noted that its shape appeared more rounded compared to before and was not irregular, recommending another follow-up in three months.
My question is: Is there a risk of breast cancer in this situation, or should I consider having a biopsy sooner?

Liu Xiaojie, 40~49 year old female. Ask Date: 2022/07/21

Dr. Yuan Tianmin reply Breast and Thyroid

I believe your attending physician has been monitoring the changes in the ultrasound, so if you are willing to trust him, you can follow up in three months or seek a second opinion.

Reply Date: 2022/07/21

More Info

When interpreting breast ultrasound findings, particularly in the context of potential cancer risk, it is essential to consider several factors, including the characteristics of the lesions, their growth patterns, and the recommendations provided by your healthcare provider.

In your case, the ultrasound findings indicate a 0.6 cm black spot that has grown to 0.7 cm over a three-month period. The fact that the shape of the lesion is described as round and not irregular is a positive sign. Generally, benign lesions tend to have smooth, well-defined borders and a regular shape, while malignant tumors often present with irregular shapes and poorly defined edges. The growth of the lesion, while concerning, does not automatically indicate malignancy, especially if the shape remains consistent and the lesion is not exhibiting other suspicious characteristics.

The recommendation from your doctor to monitor the lesion for an additional three months before considering a biopsy is a common approach in breast imaging. This is particularly true for lesions that appear stable or benign in nature. The principle behind this strategy is to avoid unnecessary procedures when the likelihood of cancer is low. However, it is crucial to maintain open communication with your healthcare provider. If you have concerns about the growth of the lesion or if you experience any new symptoms (such as pain, changes in the breast's appearance, or discharge), you should discuss these with your doctor.

Breast cancer risk can be influenced by various factors, including family history, genetic predisposition, age, and personal health history. If you have a family history of breast cancer or other risk factors, it may warrant a more aggressive approach, including earlier imaging or biopsy. Additionally, if the lesion continues to grow or changes in appearance, a biopsy may be necessary to rule out malignancy.

In general, breast ultrasound is a valuable tool for evaluating breast lesions, but it is not definitive. If there is any uncertainty or if the lesion exhibits concerning features, a biopsy may be recommended to obtain a tissue diagnosis. This can provide clarity and peace of mind, as well as guide further management.

In summary, while the growth of the lesion is something to monitor, the characteristics you've described suggest a lower likelihood of breast cancer at this time. Continuing to follow your doctor's recommendations for monitoring is prudent. However, if you feel uneasy or if there are changes in your symptoms or the lesion's appearance, do not hesitate to advocate for further evaluation, including a biopsy if necessary. Your health and peace of mind are paramount, and it is essential to be proactive in addressing any concerns you may have.

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