Lung cancer diagnosis and staging (Diagnosis and staging of lung cancer)
The set of tests used to find out whether a lung problem is cancer and, if it is, how far it has spread, so the right treatment can be planned.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- This is a series of scans and small sampling tests that work out whether a lung problem is cancer and, if so, how far it has spread.
- No single test gives every answer, and a normal scan does not always rule cancer out — results are pieced together over days to weeks.
- Your case is reviewed by a multidisciplinary team (MDT) of specialists who agree the diagnosis, the stage and the treatment options with you.
- Accurate staging guides treatment but is not a cure in itself; ask what each test will change and what happens if a result is unclear.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Confirms whether a lung abnormality is cancer, or finds a non-cancer cause.
A single test is the wrong approach when the abnormality could be cancer; piecing together scans, sampling and staging is needed.
Scans are usually not painful. For airway or needle sampling you may have sedation and throat spray; you will be monitored and kept comfortable.
A named lung cancer nurse specialist as your point of contact.
Scans are usually not painful. For airway or needle sampling you may have sedation and throat spray; you will be...
After a lung needle biopsy you may have a short chest X-ray and observation to check for an air leak. After...
Any sore throat, mild cough or bruising usually settles. Tissue and molecular results are processed in the...
Results are brought together at the MDT meeting, and you are given the diagnosis, stage and treatment options...
What does diagnosing and staging lung cancer involve?
Diagnosing and staging lung cancer is not one test. It is a planned series of scans and sampling tests that answer two questions: is this cancer, and if so, what type is it and how far has it spread? The answers decide what treatment can help.
Usually it starts with a chest X-ray and a CT scan, often followed by a PET-CT scan and a way of taking a small tissue sample (a biopsy) — for example through a camera test of the airways (bronchoscopy or EBUS) or a needle through the skin guided by a scanner. Samples are also tested in the laboratory for gene changes that can guide modern treatments.
Staging uses a system called TNM, which describes the size of the tumour, whether lymph nodes are involved, and whether the cancer has spread elsewhere. Doctors choose the tests that give the most information about both diagnosis and stage with the least risk to you.
Finding cancer early and staging it accurately gives the best chance of effective treatment, but these tests cannot promise a cure, and some results take time and may need to be repeated.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
How tissue is usually sampled
| Method | What it reaches | Anaesthetic |
|---|---|---|
| CT-guided needle | Tumours near the chest wall | Local anaesthetic |
| Bronchoscopy / EBUS | Central airways and chest lymph nodes | Sedation, throat spray |
| EUS needle | Lymph nodes near the food pipe | Sedation, throat spray |
| Keyhole surgery (VATS) | Hard-to-reach lesions | General anaesthetic |
Your team chooses the method that gives both a diagnosis and the most staging information with the least risk for you.
Preparing for your test
- Bring a list of your medicines, especially blood thinners, and tell the team about any allergies, including to scan contrast dye.
- Tell the team if you have kidney problems, diabetes, asthma or are or might be pregnant, as this affects scans and contrast.
- For sampling tests under sedation, you will usually be asked not to eat or drink for a few hours beforehand.
- Arrange a responsible adult to take you home and stay with you after any test involving sedation; you should not drive for the rest of that day.
- Ask which tests are planned, in what order, and roughly how long the whole work-up will take.
- Write down your questions; it is easy to forget them, and you can bring someone with you for support.
- Ask who your main contact (often a lung cancer nurse specialist) is and how to reach them between appointments.
What happens
After a chest X-ray and CT scan, the team decides which further tests you need. Imaging tests such as PET-CT are usually not painful; you lie still while the scanner works, and a tracer or contrast may be injected through a small cannula.
Sampling tests take a tiny piece of tissue to confirm what the abnormality is. For a CT-guided needle biopsy, the skin is numbed and a needle is passed into the lung while you lie in the scanner. For bronchoscopy or EBUS, a thin flexible camera is passed through the nose or mouth into the airways, usually with sedation and throat spray, so a needle can sample the airway wall or nearby lymph nodes.
The samples go to the laboratory, where specialists examine the cells and run molecular tests. All the results — scans, samples and staging — are then brought together at a multidisciplinary team (MDT) meeting, where lung specialists, surgeons, oncologists, radiologists and pathologists agree the diagnosis, the stage and the treatment options to discuss with you.
Is this test right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- A single test is the wrong approach when the abnormality could be cancer; piecing together scans, sampling and staging is needed.
- An invasive biopsy may be avoided if it would not change treatment, or if the risk outweighs the benefit in someone who is very frail.
- PET-CT is not used to confirm spread on its own where a positive finding would still need tissue proof.
- Sampling a lesion is not advised where bleeding risk is very high until that is managed.
Delay or rearrange if…
- You have an active chest infection that could confuse the scans or make sampling riskier.
- Blood-thinning medicines need adjusting before a biopsy.
- You are or might be pregnant, which affects scans using radiation or contrast.
- Important earlier scans or results are missing and need to be gathered first.
- You are too unwell on the day for a test that needs sedation.
Alternatives to discuss
- Active monitoring with repeat imaging for a small, low-risk lung nodule, rather than immediate biopsy.
- Choosing a less invasive sampling method where it gives enough information.
- A liquid biopsy (blood test for tumour DNA) in selected cases where tissue cannot be obtained.
- Deciding, with the team, not to investigate further if treatment would not be wanted or safe.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Comfort, sedation or contrast choices
If local anaesthetic, sedation, contrast or pain relief is used, ask what is planned, why, and what it means afterwards.
Benefits
- Confirms whether a lung abnormality is cancer, or finds a non-cancer cause.
- Identifies the exact type of lung cancer, which strongly affects treatment.
- Shows how far the cancer has spread (the stage), so treatment can be planned realistically.
- Finds gene changes that may open up targeted or immune treatments.
- Allows a specialist team to recommend the safest, most effective options for you.
- Gives you and your family clearer information to make decisions.
Risks & complications
- Anxiety and waiting time while results come back
- Bruising or discomfort where blood is taken or a needle is used
- Sore throat or a mild cough after airway camera tests
- Repeat or extra tests if the first results are unclear
- A small air leak (pneumothorax) after a needle biopsy through the chest wall, sometimes needing a drain
- Bleeding from a biopsy site
- An inconclusive sample that does not give a firm answer
- Incidental findings that lead to further tests
- Serious bleeding or a tear of the airway or gut during sampling
- Infection
- A reaction to sedation or to scan contrast dye
The main downsides are the worry and time involved, and the chance that a result is unclear and needs repeating. The biggest test-specific risk is a small air leak after a through-the-skin lung biopsy. Ask your team which sampling method they recommend for you and why, and what they will do if the first sample does not give a clear answer.
Published figures to discuss
The accuracy of each test and the chance of a complication depend on the test used, the size and position of the abnormality, and your general health. Scans can give false positives and false negatives, samples can occasionally be inconclusive, and rates vary between centres, so the figures below are broad guides rather than promises.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Air leak (pneumothorax) after CT-guided lung biopsy | Reported in roughly 15 to 25 in 100 in some series, with a smaller proportion needing a chest drain | Rates vary widely with lesion depth and technique; many leaks are small and settle without a drain. | Guide sourcesClinical context |
| Inconclusive or non-diagnostic sample | Uncommon but not rare; varies by method and lesion | If the sample does not give a clear answer, a repeat or different test may be needed. | Guide sourcesClinical context |
| Serious bleeding or perforation during airway or gut sampling | Rare with diagnostic EBUS/EUS; risk rises when needle samples are taken | Severe complications are uncommon in experienced hands but need urgent recognition. | NICE NG122 — Lung cancer: diagnosis and stagingnice.org.ukSource-linked context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
What happens afterwards
Most of these tests have no physical recovery. After sampling tests, especially those with sedation or a lung biopsy, you will be watched for a short while and given clear advice on what to look out for.
- Tiredness and emotional strain while waiting for results
- Mild sore throat or a slight cough for a day or two after airway tests
- Small bruise where a needle or cannula was used
- A short period of feeling drowsy after sedation
Aftercare
- Follow any specific advice after a lung biopsy, such as avoiding heavy exertion or flying for a short period.
- If you had sedation, do not drive, sign legal documents or drink alcohol for the rest of the day, and have someone stay with you.
- Keep all follow-up appointments, as results are often only complete once several tests are back.
- Write down questions for your results appointment and bring someone with you if you can.
- Make sure you know who your nurse specialist or key contact is and how to reach them.
- Tell the team promptly about new breathlessness, chest pain or coughing up blood after a biopsy.
- List of medicines and allergies ready
- Someone to drive you home after any sedation
- Time booked off for appointments
- Questions written down for the results meeting
- Nurse specialist or key contact number saved
- A supportive person to come to the results appointment
⚠ Get urgent help if…
- Sudden or worsening breathlessness after a lung biopsy
- Sharp chest pain, especially with breathing
- Coughing up more than a small streak of blood
- Fever, chills or feeling generally unwell after a sampling test
- Bleeding that does not stop from a biopsy site
- A fast heartbeat, dizziness or collapse
Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your specialist gives you.
Results & realistic expectations
A confirmed diagnosis tells you the type of lung cancer and, with staging, how far it has spread. This guides whether surgery, radiotherapy, drug treatments or a combination is likely to help. A result may also show that the problem is not cancer, which is reassuring but sometimes still needs follow-up.
Staging is an estimate based on the best available information. It cannot guarantee an outcome, and the final stage can change once treatment, such as surgery, gives more detail. If a sample is inconclusive, more tests may be needed before a firm plan can be made.
Stage and molecular results guide treatment decisions for now, but cancer can change over time. Scans and tests may be repeated during and after treatment to check the response and watch for any return, which is called surveillance.
Related tests, treatments or support
Several of these tests are often done close together — for example a CT scan, then a PET-CT, then an EBUS to sample lymph nodes in one sitting. Combining tests where possible reduces the number of separate procedures and speeds up the diagnosis.
Follow-up & long-term care
Once all the results are back, your case is discussed at the MDT meeting and you are offered an appointment to talk through the diagnosis, the stage and the options, usually with a lung cancer nurse specialist. You should be given clear contact details and a plan for what happens next, whether that is treatment, more tests or monitoring.
- Repeat scans during and after treatment to check the response
- Ongoing surveillance imaging to watch for any return of the cancer
- Repeat molecular testing in some cases if the cancer changes or returns
Repeat, follow-on and what comes next
- Some people need a repeat or different sampling test if the first result is unclear.
- Staging can change once surgery or treatment provides more detail.
- Molecular results sometimes come back later than the initial diagnosis, which can refine the treatment plan.
- Surveillance scans after treatment may pick up changes that need further tests.
Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.
What good aftercare looks like
- A named lung cancer nurse specialist as your point of contact.
- Clear written instructions on warning signs after a biopsy and who to call.
- A results appointment that explains the diagnosis, stage and options in plain language, with time for questions.
- A clear plan for next steps, whether treatment, more tests or monitoring, and support for you and your family.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- How many scans are needed (CT, PET-CT, MRI or bone imaging)
- Whether tissue sampling is needed and which method (needle, bronchoscopy, EBUS, EUS or surgical)
- Laboratory and molecular (gene) testing of the sample
- The specialists involved, including radiologist and pathologist reporting
- Sedation or anaesthetic for sampling tests and any short hospital stay
- Multidisciplinary team review and follow-up consultations
- Repeat or additional tests if early results are inconclusive
- Which scans and sampling tests are included, and which are charged separately
- Laboratory and molecular testing fees
- Radiologist and pathologist reporting fees
- Sedation or anaesthetic fees and any day-case or overnight charges
- Consultations to explain results, and MDT review
- What happens, and what it costs, if a test is inconclusive or a complication occurs
- How quickly results will be available
On the NHS? Lung cancer diagnosis and staging is a core NHS service, usually through the urgent suspected-cancer pathway; private access may be used for speed, choice or a second opinion, but the tests are the same.
You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Not explaining that a normal scan does not fully rule out cancer.
- Not discussing the chance of an inconclusive sample and what happens next.
- Not explaining the small air-leak risk before a through-the-chest lung biopsy.
- Not setting out sedation and driving rules clearly.
- Not making clear who reviews the results and how decisions are reached at the MDT.
Marketing red flags
- Claims that a single scan can definitively diagnose or rule out lung cancer.
- Promising a cure before the diagnosis and stage are even confirmed.
- Selling a whole-body or full-body scan as a way to catch everything.
- Downplaying the chance of incidental findings, false positives or the need for repeat tests.
Choosing a specialist safely
- Check the specialist is on the GMC Specialist Register for this area.
- Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
- You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
- Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including any follow-up — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- Which tests do I need, in what order, and what will each one tell you?
- What will this result change about my treatment?
- What happens if a sample is unclear or comes back inconclusive?
- Which sampling method do you recommend for me, and what are its risks?
- When will my case go to the MDT, and when will I get my results?
- Who is my main contact if I have questions or new symptoms?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the specialist who carries out my test, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this test not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Can I have these tests on the NHS?
Why do I need so many tests?
Does a normal chest X-ray mean I do not have lung cancer?
Are the sampling tests painful?
How long until I know my diagnosis and stage?
What does the multidisciplinary team (MDT) do?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: NICE NG122 — Lung cancer: diagnosis and staging Cancer Research UK — Tests to diagnose lung cancer Cancer Research UK — Stages and types of lung cancer NHS — Lung cancer diagnosis NICE NG12 — Suspected cancer: recognition and referral (lung)
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
Related guides: CT chest scan · Chest X-ray · Lung cancer surgery · Keyhole lung surgery (VATS) · Lymph node biopsy