Breast Lumps: Why Ultrasound Shows No Abnormalities - Breast and Thyroid

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Breast self-examination revealed a lump, but the ultrasound examination showed no abnormalities?


Last November, I accidentally discovered a hard lump in my left breast.
I went to a women's and children's hospital and consulted with an obstetrician-gynecologist who specializes in breast ultrasound.
After a physical examination and ultrasound, the doctor indicated that there were two breast cysts and advised me not to worry, suggesting a follow-up in a year.

Last month, the day before my period, I felt a hard lump the size of a peanut in my right breast, which was movable with clear edges.
It persisted until the fifth day of my period, prompting me to return to the women's and children's hospital for another examination.
After a physical examination and ultrasound, the doctor stated that both breasts appeared normal and that the cysts in the left breast had disappeared.

At that time, I asked the doctor why there was a hard lump in my right breast, and the doctor explained that it was fat.
I would like to ask the doctor why the ultrasound examination showed no abnormalities, yet I can still feel hard lumps in both the right and left breasts.
Thank you very much for your response.

Alice, 40~49 year old female. Ask Date: 2018/06/02

Dr. Yuan Tianmin reply Breast and Thyroid


If there are any doubts regarding this visit, you may consult the breast specialist again.
Finding a lump during the examination does not necessarily indicate the presence of a tumor.

Reply Date: 2018/06/02

More Info


When it comes to breast lumps, understanding the nuances of ultrasound findings and physical examinations is crucial for both patients and healthcare providers. In your case, the ultrasound results indicated no abnormalities, despite your physical examination revealing palpable lumps. This situation can be perplexing, but it is not uncommon.

Firstly, it is important to recognize that breast tissue is composed of various structures, including glandular tissue, fatty tissue, and connective tissue. The presence of lumps can often be attributed to benign conditions such as cysts, fibroadenomas, or even normal variations in breast tissue. In your previous ultrasound, the doctor identified two cysts in your left breast, which are fluid-filled sacs that are typically benign. The fact that these cysts have resolved over time is a positive sign, indicating that they were likely not a cause for concern.

The recent discovery of a lump in your right breast, described as being the size of a peanut and movable with clear edges, could indeed be a benign fatty tissue or a lipoma. Lipomas are soft, fatty lumps that can develop in various parts of the body, including the breast. They are usually harmless and do not require treatment unless they become bothersome or grow significantly.

Ultrasound is a valuable tool in breast imaging because it uses sound waves to create images of the internal structures of the breast. It is particularly useful for differentiating between solid masses and fluid-filled cysts. However, ultrasound has its limitations. For instance, it may not always detect very small lesions or differentiate between certain types of tissue. Additionally, the interpretation of ultrasound images can be influenced by the operator's experience and the quality of the equipment used.

In your case, the absence of abnormalities on the ultrasound does not necessarily mean that the palpable lumps are pathological. It is possible that the lumps you feel are normal variations in breast tissue or benign conditions that do not warrant further investigation. The fact that your doctor reassured you about the nature of these lumps is a positive indication that they are not concerning.

If you continue to feel anxious about the lumps or if they change in size or characteristics, it is advisable to follow up with your healthcare provider. Regular monitoring is essential, especially if you have a family history of breast conditions or if you notice any new changes. Your doctor may recommend follow-up ultrasounds or even a mammogram, depending on your age and risk factors.

In summary, the lack of abnormalities on the ultrasound does not negate the presence of palpable lumps in your breast. These lumps may be benign and not indicative of any serious condition. However, ongoing communication with your healthcare provider is key to ensuring your peace of mind and addressing any concerns you may have. Regular check-ups and monitoring are essential components of breast health, especially for women of all ages.

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