Brain Tumour Misdiagnosis & Late Diagnosis Claims
Summary: A brain tumour misdiagnosis in Ireland happens when a doctor, radiologist or hospital fails to act on warning signs that a reasonably competent professional would have investigated, and that delay causes avoidable harm. Brain tumours are often missed because early symptoms such as headaches, vision changes, new seizures or personality change get blamed on migraine, stress or sinus trouble. This page explains how a late diagnosis happens in the Irish system, how the Dunne test and loss of chance apply, the two-year time limit, and what a claim may be worth. It is general legal information, not advice on your own case.
Contents
Brain tumour misdiagnosis claims: quick answers
Do I have a claim?
Possibly, if a competent doctor would have investigated sooner and the delay caused avoidable harm.
What is the deadline?
Usually two years less one day from your date of knowledge. Do not wait, it can pass quickly.
Do I go to the Injuries Board?
No. Medical negligence is excluded, so a claim is issued in the High Court.
Can I claim with a poor prognosis?
Yes. Loss of chance can compensate the lost opportunity of earlier or gentler treatment.
How a brain tumour is misdiagnosed or diagnosed late
In brief: A brain tumour misdiagnosis in Ireland usually involves an insidious set of symptoms, dismissed over several visits as migraine, stress or a minor problem, until a scan finally reveals the tumour.
Brain tumours rarely announce themselves. Their early signs are common and easily explained away. A persistent headache, blurred or double vision, a first seizure in adulthood, clumsiness in one hand, or a change in mood or personality can all point to the brain, yet each is far more often something harmless. That overlap is exactly why a delayed diagnosis happens, and why Irish courts look closely at the pattern of presentations rather than a single appointment.
Certain combinations should raise concern. A headache that is worse on waking, brought on by coughing or bending, or joined by vomiting, drowsiness or visual change, is a recognised warning sign of raised pressure inside the skull British Journal of General Practice (open access) [10]. A headache joined by a clear change in thinking or personality, sometimes called a headache plus, also raises the likelihood of a tumour on a scan [10]. When these features are recorded and not acted on, the delay interval begins.
| Symptom pattern | Common wrong label | Why it can be a brain tumour |
|---|---|---|
| Persistent or morning headaches, worse on coughing or bending | Tension headache, migraine, sinusitis | Can signal raised intracranial pressure from a mass [10] |
| New seizure in an adult | One-off faint or stress | A first adult seizure warrants urgent brain imaging |
| Personality change, low mood, confusion | Depression, anxiety, burnout | Frontal and temporal tumours alter behaviour and cognition |
| Progressive weakness, clumsiness or visual loss | Trapped nerve, eye strain, MS | A focal neurological deficit points to a structural cause |
For any claim, a tumour does not have to be cancerous to cause serious harm. A benign growth such as a meningioma or an acoustic neuroma still expands inside the fixed space of the skull, and the National Cancer Registry records these central nervous system tumours alongside malignant ones [1]. A late diagnosis can leave a patient needing far more invasive surgery, with a higher risk of lasting damage to sight, hearing, movement or memory.
Common ways the diagnosis is missed
In brief: Most brain tumour claims in Ireland turn on a missed referral or a missed scan finding, not on a single dramatic error.
The failures tend to fall into a few familiar patterns. A GP gives repeated reassurance as the warning signs accumulate, without arranging urgent imaging. A patient is referred, but the request is not treated as urgent and the waiting time lets the tumour grow. A scan is performed, but a subtle lesion is missed or the report is not acted on. Each of these can amount to a failure to refer for urgent investigation or a failure to follow up. These patterns sit within the wider field of delayed diagnosis claims in Ireland.
The Irish pathway makes timing matter even more. The National Cancer Control Programme runs rapid-access clinics for breast, lung and prostate cancer, where a GP can fast-track a worried patient [2]. There is no equivalent national clinic for brain or CNS tumours, so diagnosis depends heavily on the individual GP recognising the pattern and on access to scanning [3]. Since late 2020, GPs have been able to order CT and MRI through a community diagnostics scheme, which can be far quicker than a routine hospital wait, but a normal CT does not rule a tumour out, and MRI remains the definitive test Irish Journal of Medical Science (2023) [11]. Public MRI waiting times can run to several months, while a self-funded private scan is often available within weeks, which is why many families pay for their own MRI before a diagnosis is reached [11].
| Point of failure | What went wrong | Whose standard is judged |
|---|---|---|
| GP or primary care | Repeated reassurance, no urgent referral or scan despite red flags | A reasonably competent GP |
| Hospital or outpatient | Referral not treated as urgent, long wait, or patient lost to follow-up | A reasonably competent hospital service |
| Radiology | A subtle tumour missed on a scan, or a report not issued in time | A reasonably competent radiologist |
| Multidisciplinary team | An incidental finding noted but not acted on or communicated | A reasonably competent treating team |
Proving negligence: breach of duty and causation
In brief: You must show two things: that the care fell below the standard set by the Dunne test, and that the delay caused you harm.
The standard of care in Ireland comes from the Dunne principles, confirmed by the Supreme Court in Morrissey v HSE [2020] IESC 6 [7]. The question is not whether a tumour was missed with hindsight. It is whether no reasonably competent professional of the same standing would have acted as the GP, radiologist or neurologist did at the time. We explain this fully on our breach of duty page, and it applies differently to each specialist involved.
Breach alone is not enough. You also have to prove causation, meaning the delay actually changed your outcome, on the balance of probabilities [7]. In brain tumour cases this is where defendants concentrate their defence. The State Claims Agency, which handles claims against public hospitals, will often accept that the care was substandard while arguing the delay made no difference. That is exactly what happened in the Cork University Hospital case below, where the HSE admitted negligence on the delay but contended the five-month wait did not change the result Irish Times (June 2022) [12].
Knowing that defence shapes how a strong claim is built. The answer is rarely more argument and usually more evidence. A specialist reviews the earlier scans frame by frame to show when the tumour first became visible, then pins down what treatment would have been possible at that point, for example a complete surgical removal rather than partial debulking and radiotherapy. The clearer that lost treatment window is on the records, the harder the delay-made-no-difference defence becomes.
Because the standard depends on the exact specialty, these claims need independent expert evidence, usually from a neurosurgeon, neuro-oncologist or neuroradiologist. In our experience handling neurology negligence claims, including brain tumour delay, the most common pattern is not one dramatic missed scan but repeated reassurance over multiple visits while the red flags build.
Loss of chance: did the delay reduce your survival or treatment options?
In brief: Irish law can compensate the lost chance of a better outcome, even where survival was already uncertain.
Brain tumours change with time. A delay can let a lower-grade, operable tumour progress to a higher grade, spread into critical brain tissue, or become inoperable. The harm is then specific and real, the loss of the chance to have less invasive surgery, to preserve speech, movement or memory, or to avoid aggressive whole-brain radiotherapy and its long-term effects. Brain tumours are graded one to four, and a delay that lets a low-grade tumour progress to a higher grade narrows the options at every step.
This is where the doctrine of loss of chance matters. In Philp v Ryan [2004] IESC 105, the Supreme Court compensated a patient for an eight-month delay in diagnosing prostate cancer, accepting that he had been deprived of the opportunity of earlier treatment even though he could not prove the delay shortened his life [8]. For brain tumour patients with a difficult prognosis, this is important. A poor outlook does not automatically end a claim, because the loss of a genuine treatment opportunity can itself be compensable.
Compensation: what a claim may include
In brief: General damages for pain and suffering are capped at about €550,000, but the financial losses in a serious brain injury case are usually far larger and are not capped.
Compensation in Irish claims has two main parts. General damages, for pain, suffering and loss of quality of life, are assessed under the Judicial Council Personal Injuries Guidelines, with an effective ceiling of about €550,000 for the most catastrophic injuries Judicial Council Personal Injuries Guidelines (2021) [9]. Awards vary case by case, and these figures are guidance, not a prediction. Special damages, which cover proven financial loss such as care, lost earnings, home adaptations and therapies, carry no upper limit and often run far higher in a brain injury case. You can read more on our general damages cap page.
Two publicly reported Irish settlements show the scale these cases can reach, and they are included only as examples. In 2022 a man settled a High Court action for €6.1 million over a five-month delay in diagnosing his brain tumour as a teenager, after his symptoms were attributed to psychological and functional causes until his mother arranged a private MRI [12] RTE News (June 2022) [13]. In a separate 2021 case, a boy settled for €7.5 million over an alleged delay in diagnosing a brain tumour. Where a delayed diagnosis leads to death, the family can claim under the Civil Liability Act 1961 for financial dependency and a fixed statutory payment for mental distress. Every one of these outcomes depended on its own specific facts.
Special damages are where serious brain tumour claims are usually decided, because they are uncapped and can be very large. They cover the proven cost of past and future care, lost earnings and pension, home and vehicle adaptations, assistive equipment, and rehabilitation and therapies. In catastrophic cases the court can make a Periodic Payment Order, an index-linked annual payment for life, instead of a single lump sum 15. Compensation in public-hospital cases is handled by the State Claims Agency, while a claim against a private clinician is met by their insurer.
Children and brain tumour misdiagnosis
In brief: Brain tumours in children are easily mistaken for everyday illness, and the two-year clock generally does not start until the child turns 18.
In young children the early signs are vague and easily put down to viral infections, tummy bugs or growing pains. Persistent vomiting, headache, unsteadiness, a new squint or clumsiness, or a regression in milestones can all be missed, partly because a small child cannot describe what is wrong. Tumours such as medulloblastoma, ependymoma and low-grade glioma are the ones most often involved.
The law gives families time. For a child, the limitation clock generally runs from their 18th birthday, so a claim can be brought years later. In a 2021 High Court case, a boy settled for €7.5 million over an alleged delay in diagnosing a brain tumour, where it was said there were three missed opportunities before a scan revealed it 14. As with every example on this page, that outcome turned on its own facts.
Key Irish brain tumour cases
In brief: Two reported decisions show how Irish courts treat the standard of care and the lost chance of earlier treatment. They are public examples, not predictions.
Morrissey v Health Service Executive [2020] IESC 6
Holding: The Supreme Court confirmed the Dunne test as the standard for clinical negligence and held the HSE could not avoid a non-delegable duty by outsourcing screening. Why it matters: It is the leading modern authority on the standard a missed or misread result is judged against. 7
Philp v Ryan [2004] IESC 105
Holding: Damages were awarded for an eight-month diagnostic delay because the patient lost the opportunity of earlier treatment, even without proof the delay shortened life. Why it matters: It is the Irish anchor for loss-of-chance arguments in delayed cancer diagnosis. 8
Time limits and the date of knowledge
In brief: The deadline is two years less one day from your date of knowledge, and a clinical negligence claim does not go through the Injuries Resolution Board.
Under the Statute of Limitations (Amendment) Act 1991, as amended by section 7 of the Civil Liability and Courts Act 2004, you have two years less one day to start a claim [4]. The clock runs from your date of knowledge, not always the date of the error. For an insidious illness like a brain tumour, that date can be later than people expect, often when an expert confirms that earlier symptoms or scans should have prompted action. Our date of knowledge guide explains how this is decided.
Two Irish points catch people out. First, medical negligence is excluded from the Injuries Resolution Board under the Personal Injuries Assessment Board Act 2003, so there is no Board assessment and no pause in the clock, only a High Court summons stops it [5]. Second, a three-year deadline you may see online comes from English law or from an Irish provision that was never commenced. The Irish deadline remains two years. See our medical negligence time limits page for the exceptions, including children, whose time runs from their 18th birthday, and people who lack capacity.
Brain tumour claim deadline calculator
In brief: Enter your date of knowledge to see a provisional two-year deadline. This is a guide only, and your real date of knowledge can differ.
The date you first knew, or ought to have known, that the diagnosis may have been negligently delayed.
Open disclosure: what the hospital must tell you
In brief: Since 26 September 2024, Irish hospitals must formally tell patients when a serious incident happens, but an apology is not the same as proof of a claim.
The Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023 requires public and private providers to hold a formal open disclosure meeting after a notifiable incident, such as a death or serious harm during care [6]. This can be how a family first learns that a brain tumour was visible on an earlier scan, or that a referral was missed. That meeting can fix your date of knowledge. Yet the Act protects the information and any apology shared at the meeting from being treated as an admission of liability [6]. A solicitor still has to build the case independently, obtain the medical records by a data access request, and secure expert evidence to prove breach and causation.
How Irish law differs from UK guidance
In brief: Many top search results describe UK law. Three differences matter most for a brain tumour claim in Ireland.
If you have read a UK page, check it against Irish law before relying on it, because the tests and deadlines are not the same.
| Issue | Ireland | UK, for comparison |
|---|---|---|
| Standard of care | The Dunne test 7 | The Bolam and Bolitho tests |
| Time limit | Two years less one day from date of knowledge 4 | Generally three years |
| Loss of chance | Recognised in Philp v Ryan 8 | More restrictive after Gregg v Scott |
What most guides miss
In brief: Three points are usually left out, and each can decide whether a brain tumour claim succeeds.
First, the absence of a rapid-access clinic for brain tumours is not a defence, it is part of the problem. Because there is no fast-track service, a competent GP is expected to use urgent referral or community imaging when red flags appear [2][3]. Second, a normal CT scan does not close the case. CT can miss tumours that MRI would show, so a reassuring CT followed by no MRI can still be negligent [10][11]. Third, being told it was migraine or stress does not reset the clock. Your date of knowledge often arrives only when a later scan or expert reveals the earlier miss, which can keep a claim in time even after months of reassurance [4].
Check if you may have a claim
In brief: Answer four short questions to see whether your situation has features commonly seen in a brain tumour misdiagnosis claim. This is a guide, not legal advice.
How we can help
In brief: We review what happened, obtain your records and an independent expert opinion, and advise honestly whether a claim is viable, with no pressure.
If you suspect a brain tumour was missed or diagnosed late, the first step is a confidential conversation. We are medical negligence solicitors based in Dublin and acting for clients across Ireland, including by phone and video. We request your records, instruct an independent specialist to review the timeline, and tell you clearly whether the standard of care and causation tests are likely to be met. You can also read about our work on neurology and neurosurgery negligence.
We act on a no win no fee basis for cases we take on. In contentious business, a solicitor may not calculate fees or other charges as a percentage or proportion of any award or settlement. To talk it through, call 01 903 6408 for a free, confidential consultation.
Gary Matthews Solicitors, 3rd Floor, Ormond Building, 31-36 Ormond Quay Upper, Dublin D07. Telephone 01 903 6408.Fast facts about brain tumours in Ireland
Brain tumour diagnoses in Ireland have risen in recent decades, and the registry also records benign CNS tumours alongside malignant ones [1]. Survival is poor for the most aggressive types, with about 4% of glioblastoma patients alive at five years [1]. Rapid-access clinics cover breast, lung and prostate cancer, but not brain tumours [2]. MRI is the definitive scan, and a normal CT does not rule a tumour out [10][11].
How to start a brain tumour misdiagnosis claim in Ireland
Five practical steps, each kept short.
- Write down the timeline. Note each visit, the symptoms you reported, and what you were told.
- Request your medical records. You are entitled to them by a data access request to your GP and hospital.
- Get advice early. The two-year clock runs from your date of knowledge, so do not wait [4].
- Independent expert review. A solicitor instructs a specialist to confirm breach and causation.
- Proceedings if appropriate. A clinical negligence claim is issued in the High Court, not the Injuries Resolution Board [5].
Common questions
Can I claim if my brain tumour was diagnosed late?
Possibly. You can claim if the care fell below the Dunne standard and the delay caused avoidable harm, such as more invasive treatment or a worse prognosis. The deadline is usually two years from your date of knowledge.
Eligibility turns on two questions. Would a reasonably competent GP, radiologist or hospital doctor have acted sooner on your symptoms or scans, and did the delay make a real difference to your treatment or outcome. A late diagnosis on its own is not enough, there must be a substandard act or omission and resulting harm. Where survival was already poor, loss of chance may still support a claim for the lost opportunity of earlier or gentler treatment.
From our experience: The strongest cases show a clear pattern of reported red flags over several visits, recorded in the notes, with no urgent referral or scan.
Next step: Cancer misdiagnosis claims
What if I was told it was migraine or stress for months?
That pattern is common in brain tumour claims. Repeated reassurance despite accumulating red flags, without urgent imaging or referral, can amount to a breach of duty if a competent doctor would have acted sooner.
Headaches, low mood and tiredness are usually harmless, so a single reassuring visit is rarely negligent. The picture changes when warning features build up, a headache that worsens on waking or bending, a first adult seizure, new weakness, or a clear personality change, and still nothing is done. Irish courts look at the whole sequence of appointments, not one visit in isolation, when deciding whether the threshold was crossed.
From our experience: Patients often blame themselves for not pushing harder. The legal duty to investigate sits with the clinician, not the patient.
Next step: Failure to refer for investigation
How do I prove the delay in diagnosing my brain tumour caused harm?
An independent specialist reviews your records and timeline to show that earlier diagnosis would likely have changed your treatment or outcome. Where survival was uncertain, loss of chance may apply instead.
Causation is proven on the balance of probabilities, meaning more likely than not. Your expert pinpoints when the tumour should have been found and what treatment would then have been possible, for example surgery instead of whole-brain radiotherapy. The State Claims Agency often accepts the care was poor but argues the delay changed nothing, so clear, dated evidence of the lost treatment window is what decides these cases.
From our experience: Retrospective review of earlier scans is frequently where a previously missed lesion becomes obvious.
Next step: Causation in medical negligence
What evidence and records do I need?
You need your full GP and hospital records, including referrals, scan images and reports, and a clear timeline of symptoms and appointments. A solicitor then instructs an independent medical expert.
You can request your records directly by a data access request, which is free and covers notes, letters and imaging. A diary or list of dates, symptoms and what you were told at each visit is valuable, because gaps and reassurances in the notes often prove the pattern. The expert report, usually from a neurosurgeon or neuroradiologist, is the document that turns a complaint into a viable claim.
From our experience: Original scan images, not just the typed reports, are essential, since the dispute is often about what was visible at the time.
Next step: Breach of duty
What is the time limit for this type of claim in Ireland?
Two years less one day from your date of knowledge, under the Statute of Limitations (Amendment) Act 1991 as amended by section 7 of the Civil Liability and Courts Act 2004. A clinical negligence claim does not go through the Injuries Resolution Board, so only a High Court summons stops the clock.
Date of knowledge is the date you first knew, or ought reasonably to have known, that you were significantly injured and that it was linked to negligent care. That is often later than the original error. A three-year limit you may read about online comes from English law or an Irish provision that was never commenced, so it does not apply here. Different rules apply to children and to people who lack capacity.
From our experience: People frequently contact us close to the deadline, so early advice protects your position even if you are still deciding.
Next step: Medical negligence time limits
Can I claim for a child, or after a death?
Yes. For a child, the two-year clock generally runs from their 18th birthday. Where a delayed diagnosis leads to death, close family can bring a claim under the Civil Liability Act 1961.
A parent or guardian can act for a child during childhood, and the child keeps the right to claim into early adulthood. A fatal claim can cover financial dependency, funeral costs and a fixed statutory payment for mental distress shared among the statutory dependants. These cases are handled with care, and the same standard-of-care and causation tests apply as in any other brain tumour claim.
From our experience: Bereaved families often worry they have left it too late. The limitation rules for fatal claims differ, so it is worth checking.
Next step: Recent medical negligence cases
Will I have to go to court?
Most claims settle before a hearing. A claim is prepared as if it will go to trial, which strengthens your position, but the majority resolve by negotiation or mediation.
Clinical negligence claims are issued in the High Court and managed under its procedures, yet a contested trial is the exception, not the rule. Strong expert evidence often brings the other side to negotiate or mediate. If a settlement involves a child or a person who lacks capacity, a judge must approve it to make sure the terms are fair.
From our experience: Clients are usually relieved to learn that giving evidence in a courtroom is uncommon in these cases.
Next step: Medical negligence claims
How long does a brain tumour misdiagnosis claim take in Ireland?
There is no fixed timescale. A straightforward case can settle within a couple of years, while a contested catastrophic claim takes longer, because the expert evidence and the extent of future loss take time to establish.
Several things drive the timeline: gathering the full records, obtaining independent expert reports, and waiting until a child's or an injured person's long-term prognosis is clear enough to value the future loss. Cases involving a reduced life expectancy can be prioritised by the court. Most claims resolve by negotiation or mediation rather than a full trial, which can shorten the process.
From our experience: Settling before the long-term prognosis is clear can undervalue a claim, so the right pace protects the client.
Next step: Medical negligence claims
How much could a brain tumour misdiagnosis claim be worth?
It depends entirely on the harm and the financial loss. General damages for pain and suffering are capped at about €550,000, while special damages for care, lost earnings and adaptations are uncapped and often much larger.
No two claims are alike, and published settlements are examples, not predictions. Value is built from the severity of the injury, the care and equipment needed for life, lost income, and whether the delay caused a separate, provable worsening of outcome. General damages follow the Judicial Council Personal Injuries Guidelines 9, and special damages are proven by evidence.
From our experience: The future care and earnings elements usually dwarf the general damages figure in a serious brain injury case.
Next step: General damages cap
How much does it cost, and is it no win no fee?
We offer a free initial consultation and act on a no win no fee basis for cases we take on. In contentious business, a solicitor may not calculate fees as a percentage or proportion of any award or settlement.
No win no fee means you do not pay our professional fees if the claim does not succeed, subject to the terms we agree at the outset. Outlays, such as expert and court fees, and how they are handled, are explained clearly before you commit. We talk you through costs in plain language so there are no surprises later.
From our experience: Cost worry stops many people from seeking advice, which is why the first consultation is free and without obligation.
Next step: No win no fee explained
Key terms in plain English
- Brain tumour
- A growth of abnormal cells in or around the brain. It can be cancerous or non-cancerous, and both can cause harm through pressure.
- Glioma and glioblastoma
- Tumours arising from the brain's supporting cells. Glioblastoma is a fast-growing, high-grade glioma with a poor prognosis.
- Meningioma
- A usually non-cancerous tumour of the brain's lining. It can still cause serious harm as it presses on nearby structures.
- The Dunne test
- The Irish standard for medical negligence, asking whether no reasonably competent doctor would have acted as this one did.
- Loss of chance
- Compensation for a lost opportunity of a better outcome, even where the final result could not have been certain.
- Date of knowledge
- The date you first knew, or ought to have known, that you were injured and that it was linked to negligent care. The two-year clock runs from here.
References
- National Cancer Registry Ireland, Cancer Trends 28 (Primary brain cancer). ncri.ie [1]
- Citizens Information, Cancer services (Rapid Access Clinics), Updated 2024. citizensinformation.ie [2]
- HSE, Cancer (diagnosis, symptoms and services). hse.ie [3]
- Statute of Limitations (Amendment) Act 1991, as amended by section 7 of the Civil Liability and Courts Act 2004 (which reduced the personal injuries limitation period to two years). irishstatutebook.ie (1991 Act) · irishstatutebook.ie (2004 Act, s.7) [4]
- Personal Injuries Assessment Board Act 2003 (scope of the Injuries Board). irishstatutebook.ie [5]
- Patient Safety (Notifiable Incidents and Open Disclosure) Act 2023. irishstatutebook.ie [6]
- Morrissey v Health Service Executive [2020] IESC 6. bailii.org [7]
- Philp v Ryan [2004] IESC 105. bailii.org [8]
- Judicial Council, Personal Injuries Guidelines (2021). judicialcouncil.ie [9]
- Earlier diagnosis of patients with brain tumour, British Journal of General Practice (open access). ncbi.nlm.nih.gov [10]
- GP perspectives on direct-access radiology, Irish Journal of Medical Science, 2023. link.springer.com [11]
- Man (20) settles €6m action over delay in diagnosing brain tumour, Irish Times, 15 June 2022. irishtimes.com [12]
- €6m settlement over brain tumour diagnosis delay, RTE News, 15 June 2022. rte.ie [13]
- Settlement of €7.5m for boy over alleged delay in diagnosing brain tumour, Irish Times, 2 July 2021. irishtimes.com [14]
- Civil Liability (Amendment) Act 2017 (periodic payment orders). irishstatutebook.ie [15]
Additional resources
Patient and family support: Brain Tumour Ireland · Irish Cancer Society · HSE cancer information. For the law behind these claims, see our cancer misdiagnosis claims.
Related guides: Cancer misdiagnosis · Breach of duty · Causation · Loss of chance · Date of knowledge · Neurology and neurosurgery negligence · Acquired brain injury · General vs special damages · Recent cases
Gary Matthews Solicitors
Medical negligence solicitors, Dublin
We help people every day of the week (weekends and bank holidays included) that have either been injured or harmed as a result of an accident or have suffered from negligence or malpractice.
Contact us at our Dublin office to get started with your claim today
