Brain cancer misdiagnosis claims

At Osbornes Law, our medical negligence team has spent decades pursuing brain tumour misdiagnosis claims for clients across the UK, including a delayed glioma diagnosis handled by partner Jodi Newton. Recognised by Legal 500 2026 and Chambers UK 2026. We act on a no win no fee basis.

Why brain tumours get missed in UK primary care

Partner Jodi Newton acted for the family of a 67-year-old man who had spent six months experiencing facial sensations and tinnitus. His GP referred him for an MRI within two weeks. The scan showed abnormalities. The findings were never communicated to the treating GP and no follow-up appointment was arranged. Eleven months passed. He collapsed overseas, was diagnosed with a high-grade glioma, and died eight months later. The claim was settled on the basis that significant opportunities to diagnose his condition earlier had been missed.

That pattern, where the imaging is right but the chain of communication breaks, is one of two common starting points for a brain tumour claim. The other is the GP who treats the symptoms as something common: a new headache attributed to stress or tension; nausea blamed on a viral illness; vision changes referred to an optician without escalation; personality or behavioural changes dismissed as low mood. The tumour goes undiagnosed for months while the symptoms progress.

NICE guideline NG12 sets out when those symptoms should trigger urgent action. A GP should consider an urgent direct-access MRI scan, or refer on the two-week-wait suspected cancer pathway, in adults with progressive sub-acute loss of central neurological function. They should also consider urgent imaging in adults with new-onset headache that has worsening features, in over-50s with persistent headache, and in adults with new neurological symptoms in a relevant context.

NICE NG99 sets the diagnosis and management pathway from imaging through neurosurgical review, biopsy, staging and treatment. Where the GP misses the red flags, the MRI is not arranged, or an abnormal scan is misreported or not acted on, the diagnosis can be delayed by months.

When a missed brain tumour diagnosis amounts to medical negligence

A claim does not arise just because the diagnosis came late. We have to show two things. First, that the care fell below the standard of a reasonably competent doctor. Second, that the delay made a real difference to your treatment options or your prognosis.

NICE NG12 and NICE NG99 are the benchmarks we use. If your GP ignored progressive neurological symptoms, dismissed worsening headaches in an over-50, failed to arrange imaging, or missed an abnormal MRI report, that is a strong starting point for a breach of duty argument.

Causation in brain tumour claims is nuanced. Some tumours, particularly high-grade gliomas, may have a similar outcome whether diagnosed sooner or later. Others, including low-grade tumours and benign meningiomas, are very treatment-sensitive at an early stage. We instruct independent neurologists and neuro-oncologists to compare what your treatment and prognosis would have been at the earlier point of diagnosis with where you are now.

The impact of a delayed brain tumour diagnosis

A small tumour, caught early, can sometimes be removed by surgery alone, with no need for radiotherapy or chemotherapy. The five and ten-year survival figures for low-grade tumours diagnosed early can be very high.

The picture changes as the tumour grows. Surgery becomes more complex, with greater risk of damage to surrounding brain. Radiotherapy and chemotherapy may be added. Some patients lose the option of curative surgery entirely. Cognitive, motor, speech and personality changes that began before diagnosis can become permanent.

For some patients, the delay is fatal. We act for families in fatal medical negligence claims where the tumour was treatable at the missed appointment but inoperable by the time of diagnosis.

What you can claim compensation for

Compensation is calculated under two heads. General damages cover the pain, suffering and loss of amenity caused by the negligence. The Judicial College Guidelines set out the brackets for brain injury, including cognitive impairment. Special damages cover the financial losses.

In practice, that includes:

• Loss of earnings if the delayed diagnosis has stopped you working, or shortened your working life.
• The cost of private treatment, including private MRI imaging and any treatment not funded on the NHS.
• Care costs: domiciliary, residential, or family-provided care.
• Home adaptations, mobility equipment, and assistive technology for cognitive or motor impairment.
• Rehabilitation, including neurorehabilitation, occupational therapy and speech and language therapy.
• Future losses, including pension shortfall and dependency claims under the Fatal Accidents Act 1976 where the prognosis is poor.

Brain tumour claims with significant ongoing care needs regularly settle for six and seven figures.

Making a brain tumour claim with Osbornes

We work in three stages.

1. Initial review. You tell us what happened. We listen, ask questions, and tell you honestly whether we think there is a claim worth investigating. There is no obligation at this stage.
2. Investigation. We obtain your full GP, optician, neurology and imaging records. We instruct an independent neurologist or neurosurgeon to review the standard of care, and a neuro-oncologist to address what difference earlier diagnosis would have made. This work is funded under a no win no fee agreement.
3. Resolution. Most brain tumour claims settle out of court once the medical evidence is exchanged. If yours does not, our medical negligence lawyers will issue proceedings and take the case to trial.

You have three years from the date of the negligence, or the date you became aware that negligence may have caused harm, to bring a claim. In cases involving children or patients who lack capacity following surgery, different rules apply.

Why families choose Osbornes for brain tumour claims

Our medical negligence team is led by partner Hugh Johnson, with cancer misdiagnosis work led by partner Jodi Newton. Several of our solicitors hold medical qualifications, which means we read GP notes, neurology assessments and radiology reports the way an expert witness would.

The firm handles a high volume of brain injury work, including serious brain injury claims under both personal injury and medical negligence law. That depth of brain injury experience matters in brain tumour claims, where ongoing care needs drive much of the settlement value.

“They know the law inside out and proactively work with counsel to drive cases forward. They are a go-to for complex claims.”

Chambers UK 2026

We are members of the Action against Medical Accidents (AvMA) clinical negligence panel and hold the Law Society Clinical Negligence Accreditation.

Speak to a brain tumour claims solicitor today

If you believe your brain tumour was missed, misdiagnosed or diagnosed too late, our cancer misdiagnosis lawyers will review your case in confidence and without obligation.

Call 020 7485 8811 or fill in the contact form below.