Lung cancer that returns after an operation has not always spread. Cancer can come back in the chest alone, and where that is what has happened, it can sometimes be removed. Dr Lawrence Okiror performs robotic navigational bronchoscopy to sample the new area and carries out the surgery that follows, so one surgeon covers the whole pathway. Second opinions at London Bridge Hospital and The Lister Chelsea within 2–3 working days. Self-referrals welcome.
Last reviewed: October 2026 · Dr Lawrence Okiror FRCS(CTh) FRCSEd(CTh) · GMC 6150382
Most people are told that the cancer has come back and take it to mean that it is now in the bloodstream and that surgery has failed. That assumption dates from a time when there was no reliable way to examine the rest of the body. PET-CT and brain MRI now do that.
Where the scans show the disease is confined to the chest, and a sample confirms what it is, a further operation can be considered. Request a second opinion within 2–3 days →
The belief that recurrence after surgery means the cancer is in the bloodstream is widely held by patients and doctors. It was formed at a time when there was no way of examining the whole body reliably, so the safest assumption was that if cancer had reappeared once, it was probably present in places nobody could see.
That assumption can now be tested. A PET-CT scan examines the entire body for active disease. An MRI of the brain covers the one site a PET scan sees poorly. Together they show, with far more confidence than was once possible, whether this is one problem or many.
Sometimes disease is present in several places, and treatment given throughout the body is the right approach. Sometimes there is one area, in the chest, and nothing else. The two situations are treated differently, and the scans are the only way to tell them apart. Where the scans show a single site outside the chest, such as the adrenal gland, the brain or a bone, the cancer is staged as stage 4, and the lung itself may still be treated as part of a plan intended to cure. Stage 4 lung cancer with one site of spread →
On a scan they can look identical. The distinction is made in the laboratory, by comparing the new tissue against the tumour removed the first time. If the two match closely in type, pattern and detail, it is likely the same disease returning. If they differ, it is likely something new that has started on its own.
The two are staged and treated differently, and patients are frequently given the more pessimistic of the two interpretations by default. Where the interval since the first operation is long, a new primary is a real possibility and should be established rather than assumed. More on a new lung cancer years later →
Operating on a chest that has been operated on before is a different task from operating on one that has not. The tissue planes that a surgeon normally works along have been disturbed, and healing has left scar tissue that binds structures together which were previously separate. Everything takes longer and requires more care.
The operation remains possible. It is a specific kind of operation, best done by someone who does it regularly and who has the tools that suit it. Robotic surgery is particularly useful in a previously operated chest: the magnified three-dimensional view and the fine instrument control help most where scarring makes the anatomy harder to read.
Redo lung surgery is a small part of the workload of most thoracic units and a regular part of Dr Okiror’s.
For the patient, the practical point is continuity: the same surgeon samples the new area with robotic navigational bronchoscopy, discusses the result in the multidisciplinary meeting, and carries out the operation. Nothing is handed over between the diagnosis and the treatment.
The sequence has one purpose: to establish whether this is one problem or several. The PET-CT looks everywhere at once. The brain MRI covers the site a PET scan sees least well. If either finds disease elsewhere, the situation is different and surgery is not the answer.
If both are clear, the question becomes whether the single area can be removed and whether you can withstand the operation. Breathing tests and fitness assessment then follow. The previous operation has its greatest effect here, because the starting point is a lung that has already lost part of itself.
Errors occur at this point in both directions. People are told the cancer has returned when the area turns out to be scarring, and people are watched for months on the assumption that an area is scarring when it is cancer. The scan alone cannot separate them, and a treated chest produces confusing images for a long time.
Robotic navigational bronchoscopy is the most accurate method currently available for sampling small and deeply placed areas within the lung. It is not yet widely available: the equipment is expensive and the training specific, and most UK units do not offer it. Your CT scan is used to build a three-dimensional map of the airways, and a fine steerable instrument is guided along it to the target. You are asleep, there is no incision, and most people go home the same day.
Dr Okiror performs it himself, in his NHS practice at Guy’s and St Thomas’ and privately at London Bridge Hospital, and performs the operation that follows. More on robotic navigational bronchoscopy →
This figure shapes how a second operation is planned. The goal is to remove the cancer while leaving behind as much working lung as the situation allows. The two aims usually point the same way. Where they conflict, the operation is planned around both.
Losing an entire lung also removes future options. Radiotherapy to the remaining lung becomes far more difficult, because there is no spare capacity to absorb any injury. A patient with one lung who later develops another problem has fewer routes available than one who kept two.
A lung is a set of segments, each with its own airway and blood supply. That anatomy allows a surgeon to remove one segment and leave the rest working. Performed properly, a segmentectomy is an anatomical resection with a proper margin and the lymph glands sampled, done to a smaller scale.
It is harder in a previously operated chest, and harder again where the segment sits close to the site of the earlier surgery. The extra precision of the robotic platform is most useful in this operation. Dye and infrared imaging can also be used during the operation to confirm that the lung being preserved is receiving blood and working. More on robotic segmentectomy →
Dr Okiror has published a case of exactly this situation: a patient who had already undergone salvage removal of a lung after chemoradiotherapy, and who later developed a single deposit in the chest wall near the shoulder blade. Radiotherapy was not possible, because delivering it would have meant irradiating the only remaining lung. The deposit was removed surgically with reconstruction, and the patient remained free of disease at follow-up.1
The case illustrates the reasoning: when one treatment has been ruled out by earlier treatment, the remaining options are assessed on their own terms. It is one case and does not predict any other patient’s outcome.
A standard breathing test gives one overall number. It cannot show which parts of the lung are contributing. Where damage is uneven (it usually is after surgery, and always is where there is emphysema) that number can understate how much useful lung remains, particularly if the area now being considered for removal was contributing very little anyway. More on borderline lung function →
Fitness can change in both directions. It declines with age and with treatment. It also recovers: someone judged unfit during a difficult course of chemotherapy may be a different person eighteen months later. A judgement about operability made at a hard moment does not automatically hold years afterwards, and it is reasonable to ask whether it has been revisited. More on fitness for lung surgery →
The reason is partly selection. Patients being considered for a second operation have already proved they can recover from one, and are being chosen carefully for the second. It is also partly that these operations tend to be smaller: a segmentectomy or wedge rather than a lobectomy.
A second operation carries real risks and is technically harder than the first. Those risks are set out before you decide. It is an established operation that experienced surgeons perform.
Many patients find the second recovery harder in one respect that has nothing to do with the operation. They know what the drains feel like and how the first night goes, and that knowledge makes the experience harder to tolerate, even where the recovery is medically smoother.
Knowing in advance that this is expected helps. More on recovery after lung surgery →
A proportion of patients who come for an opinion about a second operation are advised that surgery is not the right treatment for them. That is a normal outcome of the consultation. The value of the assessment is that the question has been properly asked. The reasons people are given that an operation is not possible, and which of them can change, are set out on a separate page. Told surgery is not an option →
| Situation | Suggested action |
|---|---|
| New area at or near a previous resection site | Tissue before treatment intent is fixed — scarring and recurrence are not separable on imaging |
| Single site of recurrence, PET and brain imaging clear | Surgical opinion reasonable before defaulting to systemic treatment |
| Recurrence in a previously irradiated field | Radiotherapy may be closed off; surgical assessment is the remaining radical option |
| Ipsilateral recurrence where completion pneumonectomy is implied | Assessment for lung-sparing alternatives before that operation is accepted |
| Long interval since first resection | Compare against the original specimen — a new primary carries a different outlook from recurrence |
| Patient judged unfit during earlier treatment | Reassess: operability judgements made during systemic therapy may have changed |
Referrals and self-referrals are seen at London Bridge Hospital and The Lister Chelsea, usually within 2–3 working days. Imaging and previous operation notes can be reviewed in advance. Clinic letters go to GPs electronically within two working days, and within three working hours where urgent.
If you have been told the cancer has returned and that nothing further can be done surgically, an independent review of the imaging and the fitness assessment is reasonable. Most patients are seen within 2–3 working days.
Book a Consultation →Or call Jo Mitchelson:
020 7952 2882
If lung cancer has returned after an operation and surgery has been ruled out without restaging or a sample, the assessment is incomplete. Second opinions at London Bridge Hospital and The Lister Chelsea within 2–3 working days. Self-referrals welcome.
Jo Mitchelson, PA · 020 7952 2882 · pa@lungsurgeon.co.uk
St Thomas’ Hospital #1 UK · Guy’s Hospital #2 UK · London Bridge Hospital #10 UK · Newsweek World’s Best Hospitals 2026
Lung-sparing reconstruction of the airway for central tumours: the alternative to removing a whole lung
PneumonectomyWhen removing the whole lung is the correct operation: indications, fitness assessment, and life with one lung
Robotic SegmentectomyLung-sparing resection, often what makes a second operation possible.
Robotic Navigational BronchoscopySampling small, deep areas through the airways with no cut in the chest wall.
Two Lung Cancers at OnceWhen two tumours are two separate cancers rather than one that has spread.
Borderline Lung FunctionRegional mapping when a standard breathing test suggests surgery is not possible.
Fitness for Lung SurgeryBreathlessness, operative risk and cardiac risk, and when to reassess.
Robotic Lung SurgeryMost useful where scarring makes the anatomy harder to read.
Lung Cancer Surgery in 2026The full pathway from diagnosis through surgery to systemic therapy.
Surgery After RadiotherapyWhere radiotherapy has not fully worked and an operation remains the radical option
Told Surgery Is Not an Option?The reasons people are given that an operation is not possible, and which of them can change
Lung Cancer SurgeryPrivate robotic and keyhole lung cancer surgery at every stage, and how quickly it can happen.
Stage 4 With One Site of SpreadWhether the lung tumour can still be removed when the cancer has spread to one place
Lung Cancer Second OpinionIndependent review of imaging, staging and treatment plan within 2–3 working days.
Tumour in the Airway: Can It Be Removed?Recurrent tumour blocking an airway can be cleared through the bronchoscope whatever treatment came before