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When a needle biopsy is not enough

Excision Biopsy of a Breast Lump — Surgery That Removes and Diagnoses at Once

An excision biopsy removes the lump during surgery and sends it whole to the pathology laboratory. It removes and diagnoses in one step. In most cases you go home the same day.

Medically reviewed by Dr. Bharati Devi Gorantla, Medical Oncologist, MBBS · MD · DM (Adyar, Chennai) · ECMO · MRCP SCE (UK) · Last reviewed September 2026

  • Removes and diagnoses at once — The whole lump is taken out and sent to the laboratory in full, rather than sampled with a needle.
  • Usually day care — Most people are admitted and discharged on the same day, without an overnight hospital stay.
  • Small incision — Your surgeon aims to place the cut where it will be least visible, often at the areola edge or a natural skin crease.
  • Most lumps are benign — The majority of breast lumps sent for biopsy turn out to be non-cancerous. The test confirms this.
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An excision biopsy removes the breast lump surgically under anaesthesia. It is recommended when a needle biopsy cannot confirm the diagnosis, or when the lump is already planned for removal. In most cases it is done as day care, meaning you go home the same day.

When is excision biopsy recommended instead of a needle?

Needle biopsy is the first choice in most situations. Excision is recommended when the needle result was not conclusive, when the lump is too small or awkwardly placed for needle guidance, or when the laboratory needs more tissue to reach a definitive answer.

Some people find it easier to have the lump removed than to wait and watch. If that is how you feel, tell your surgeon — excision biopsy can answer the question and remove the lump at the same time.

The decision is made between you and your surgeon based on what your imaging and any earlier biopsy showed, and on your preference.

Words you will hear at your appointment

Excision biopsy
Surgical removal of the whole lump. The specimen is sent to the pathology laboratory in full, not in fragments.
Local anaesthesia
The breast is numbed by injection. You are awake but feel no pain during the procedure.
General anaesthesia
You are fully asleep throughout. Your anaesthetist decides which type is appropriate for you.
Wire-guided localisation
A thin wire or clip placed by radiology before surgery to help the surgeon find a lump that cannot be felt through the skin.
Histopathology
Laboratory examination of the removed tissue under a microscope. This produces the definitive result.
Day care surgery
You are admitted and discharged on the same day. No overnight stay is needed.

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Is this day care, and what will the scar look like?

Yes, in most cases. You come in on the morning of surgery and go home once you have recovered from the anaesthetic, usually the same afternoon. Bring someone to take you home — you cannot drive after anaesthesia.

The incision is small. Your surgeon aims to place it at the edge of the areola or along a natural skin crease, where it is least visible. The exact position depends on where the lump sits.

Scar appearance varies between people and cannot be predicted in advance. Most scars fade and flatten over several months. Raise any concerns with your surgeon before the procedure so that placement can be discussed.

Questions about this procedure

What happens if the result is benign?

If histopathology confirms the lump is benign, no further surgery is usually needed. Your surgeon will explain the result and what follow-up, if any, is appropriate. The lump has already been removed, so you leave with both the answer and the concern resolved. Most breast lumps sent for biopsy in India turn out to be non-cancerous, and that is the most common outcome.

Will there be a hollow or dent where the lump was?

A small hollow is possible, particularly when the lump was large relative to the size of your breast. Your surgeon can tell you whether this is likely in your specific situation before you agree to the procedure. Cosmetic outcomes vary and cannot be guaranteed. If significant reshaping is expected, your surgeon may discuss options alongside the biopsy.

When do I get the histopathology result?

The removed tissue goes to the pathology laboratory on the day of surgery. Results typically take one to two weeks, though the exact timing depends on the laboratory and whether additional tests are needed. Your team will tell you when to expect the result and how you will receive it. If you have not heard back by the date they gave you, call and ask rather than waiting.

Can I choose excision even if a needle biopsy is still possible?

Yes. If waiting with an undiagnosed lump is causing significant anxiety, or if a previous needle biopsy was difficult, telling your surgeon you prefer excision is a reasonable position. Your surgeon will explain what each approach offers so you can make an informed choice. There is no obligation to proceed with either option until you feel ready.

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Common questions

Frequently asked questions

What is the difference between excision biopsy and lumpectomy?

The surgical technique is similar, but the purpose differs. An excision biopsy removes the lump to reach a diagnosis — it is done before the nature of the lump is fully confirmed. A lumpectomy is done after a cancer diagnosis is already established; the surgeon takes a wider margin of surrounding tissue to reduce the chance of leaving cells behind. Ask your surgeon which term applies to your situation, because they are sometimes used loosely.

Can the surgery be done under local anaesthesia?

For small, accessible lumps, local anaesthesia is often suitable. You remain awake but the breast is fully numbed and you feel no pain. For deeper or more complex procedures, general anaesthesia may be safer. Your anaesthetist and surgeon will advise which is appropriate for you based on the lump's size and position. You can raise your preference at the pre-operative appointment.

Will the scar be visible in everyday clothing?

In most cases it is not visible under clothing. Your surgeon aims to place the incision at the areola edge or along a natural skin fold where it is less noticeable. Whether it is visible in everyday life depends on placement, how you heal individually, and what you wear. Scar outcomes vary and cannot be guaranteed. Raise this concern before surgery so your surgeon can explain where the incision is planned to go.

Is excision biopsy available as day care at CION?

Yes. Excision biopsy is performed as day care at CION centres. You are admitted on the day of surgery and go home the same day once you have recovered. Imaging coordination for procedures requiring wire-guided localisation is arranged with partner imaging centres. Your care team will walk you through the preparation steps at your pre-operative appointment.

What should I bring on the day of surgery?

Bring a loose top that fastens at the front rather than pulling over your head, as it is easier to manage after the procedure. Bring all regular medicines in their original packaging, including anything herbal or traditional. Bring someone who can take you home — you cannot drive after anaesthesia. Your care team will send a preparation checklist with specific instructions beforehand, including guidance on eating and drinking before the procedure.

What if I am frightened about the surgery?

That is a very common feeling, and it is worth saying so at your pre-operative appointment. Your surgical team can explain what will happen step by step, which many people find more reassuring than general comfort. You can ask what you will feel at each stage and how long recovery takes. If the fear is significant, please tell your team — it is a conversation they have often, and there are ways to help.

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