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Biopsy procedures explained

What Is a — Tru-Cut Biopsy?

Tru-Cut appears on biopsy forms in hospitals across India, but most patients are never told what it means. It is a needle brand name that became a shorthand for a specific type of biopsy — and knowing which type you are having helps you understand what the result will tell your doctor.

Medically reviewed by Dr. Mohammed Imaduddin, Surgical Oncologist, MBBS · MS (General Surgery) · M.Ch (Surgical Oncology) · Last reviewed September 2026

  • A brand name, not a procedure name — Tru-Cut is a needle manufacturer's brand that Indian hospitals use as shorthand for a core needle biopsy.
  • Tissue, not just cells — Unlike FNAC, a core needle biopsy removes a small cylinder of tissue, giving the laboratory more to work with.
  • Done under local anaesthesia — The skin is numbed before the needle is inserted. Most people feel pressure rather than pain.
  • The result guides treatment — The same sample can be tested for hormone receptors, HER2, and other markers your treatment plan may depend on.
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Tru-Cut is a brand name that became a common shorthand in India for a core needle biopsy — a procedure where a small cylinder of tissue is removed for laboratory analysis. It is different from FNAC, which takes cells rather than tissue. Your doctor chooses between them based on what the laboratory needs to make a diagnosis.

How is a Tru-Cut different from FNAC?

FeatureCore Needle Biopsy (Tru-Cut)Fine Needle Aspiration (FNAC)
What is removedA small cylinder of tissueCells drawn into a syringe
NeedleWider, with a spring-loaded actionThin, similar to a blood test
What the lab receivesIntact tissue with its architecture preservedLoose cells spread on a slide
Hormone receptor and biomarker testingUsually possible on the same sampleOften insufficient — repeat biopsy may be needed
Imaging guidanceCommonly ultrasound or CT guidedOften ultrasound guided, sometimes freehand
Most commonly used forBreast lumps, liver, soft tissue masses, lung, lymph nodesThyroid nodules, lymph nodes, superficial cysts

What will happen on the day of your biopsy?

  • Tell your team about all blood thinners, aspirin, and supplements you are taking — some may need to be paused beforehand.
  • You can usually eat and drink normally unless your team has told you otherwise.
  • The skin over the biopsy site is numbed with a local anaesthetic injection before anything else is done.
  • You may hear a sharp click when the needle fires — that is normal and lasts less than a second.
  • Firm pressure is applied to the site afterwards to reduce bruising.
  • You go home with a small dressing. Soreness for a day or two is normal.
  • The tissue is sent to a pathology laboratory — results typically take several days.

What will this actually cost you?

Costs depend on the regimen, the number of cycles and your scheme eligibility. Send your reports and we will give you an itemised, indicative estimate.

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Why does your form say 'Tru-Cut' instead of 'biopsy'?

Tru-Cut was the brand name of a core biopsy needle made by a medical device company. The name spread through Indian hospitals the way Xerox became a word for photocopying — the brand became the term, regardless of which needle a particular hospital actually uses.

If your form says Tru-Cut, your doctor has recommended a core needle biopsy. The brand of needle does not change what the procedure is or what the result will tell you.

It is worth knowing the clinical name — core needle biopsy — because that is the term you will see in your biopsy report and in any second opinion you seek.

Where is a core needle biopsy used in cancer care?

A core needle biopsy is the standard approach for most solid lumps that need a tissue diagnosis. It is used for breast lumps, liver lesions, soft tissue masses, enlarged lymph nodes, and lung nodules — usually with ultrasound or CT guidance to place the needle precisely.

The reason it is preferred for many cancers is the range of information one sample can provide. The same piece of tissue can be tested for hormone receptors, HER2 status, and molecular markers that directly shape which treatment your oncologist recommends.

Your doctor decides which biopsy type to use based on the location of the lump, what the laboratory needs, and what is safest for you. You are entitled to ask why this type was chosen for your situation.

Did you know?

The tissue core removed in a Tru-Cut biopsy is roughly the length and width of a matchstick tip — yet a single sample can provide enough material for histology, hormone receptor testing, HER2 analysis, and genomic profiling at the same time.

This is why NCCN and ASCO guidelines recommend core needle biopsy over cell-only sampling for most solid tumours where treatment decisions depend on biomarker results.

Source: NCCN Guidelines for Invasive Breast Cancer; ASCO Clinical Practice Guidelines on Biomarker Testing

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Common questions

Frequently asked questions

Is a Tru-Cut biopsy exactly the same as a core needle biopsy?

Yes. Tru-Cut is a brand name that became a shorthand for any core needle biopsy in Indian hospitals. The actual needle used may be a different brand entirely, but the procedure — removing a small cylinder of tissue with a spring-loaded hollow needle — is the same. Your biopsy report will use the clinical term, core biopsy or histopathology, not the brand name.

Why did my doctor choose this over FNAC?

A core needle biopsy gives the laboratory a piece of tissue rather than loose cells. That matters when the diagnosis requires seeing how cells are arranged within the tissue, or when your treatment plan will depend on hormone receptor testing, HER2 status, or other biomarkers. FNAC samples often do not contain enough material for those additional tests. If you want to understand the specific reason in your case, ask your oncologist directly — it is a reasonable question.

Will the biopsy be painful?

The local anaesthetic injection stings briefly, similar to a dental injection. After that, most people feel pressure rather than sharp pain when the needle fires. The click of the spring mechanism surprises some people but lasts less than a second. Soreness at the site for one to two days is normal. If pain is severe, persistent, or accompanied by increasing swelling or redness, contact your team.

How long will I wait for the biopsy result?

Most core biopsy results come back within three to seven working days, though this varies between hospitals and laboratories. If additional tests such as hormone receptor or HER2 testing are requested on the same sample, it may take a few days longer. Ask on the day of your biopsy when to expect the result and how it will be communicated to you — waiting without a timeline is harder than waiting with one.

Can the needle spread cancer cells to other parts of the body?

This concern comes up often and is understandable. Needle track seeding — where cells spread along the biopsy path — is a recognised but rare event. For the vast majority of cancer types, the benefit of getting an accurate tissue diagnosis outweighs this risk by a wide margin. Guidelines from NCCN and ASCO support core needle biopsy as the standard approach for solid tumours. If you have a specific concern about your tumour type, raise it with your oncologist before the procedure.

Do I need to stop blood thinners before a Tru-Cut biopsy?

Possibly. Some blood thinners — including warfarin, newer anticoagulants, and daily aspirin — increase the risk of bleeding and may need to be paused beforehand. Some herbal supplements carry the same risk. Tell your team everything you are taking well before the appointment. Do not stop any prescribed medicine without being told to do so — your team will say which, if any, to pause and for how long.

Full index

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