Cancer Misdiagnosis Claims

If you or a family member received a wrong cancer diagnosis, or a diagnosis that came too late, and you need compassionate legal advice, our solicitors, with over 22 years of experience in clinical negligence claims in England and Wales, can help.

Last reviewed: July 2026

A cancer misdiagnosis claim compensates a patient for harm caused when cancer was wrongly diagnosed, wrongly excluded, or diagnosed later than a competent clinician would have achieved. In England and Wales, this can cover:

a missed diagnosis on a scan or biopsy,
a failure to refer for urgent investigation, and
a wrong diagnosis that led to unnecessary treatment for a condition the patient did not have.

The consequences of a missed or delayed cancer diagnosis can be devastating. They can include reduced survival chances, more invasive treatment, and a prognosis that would have been different with earlier intervention. We know that a wrong or late cancer diagnosis affects not only the patient but the whole family around them, and we treat every case with compassion and sensitivity. You can trust that our team will never give up until we achieve justice for you.

Law Lane Solicitors advises clients and their families in clinical and medical negligence claims from our offices in Stratford, High Holborn, and Croydon. Founded in 2015, we are regulated by the Solicitors Regulation Authority and hold a Law Society of England and Wales accreditation in Personal Injury. Our commitment to getting the best results for our clients is evidenced by our average of 4.95 out of 5 based on over 1,200 reviews.

What does our cancer misdiagnosis service cover?

Cancer misdiagnosis claims arise from missed symptoms, misread scans, delayed referrals and failures to act on abnormal results. Our team has extensive experience on advising on the following types of claims:

Missed diagnosis claims, where symptoms suggestive of cancer were not investigated or referred for specialist assessment within a reasonable time.
Misread scan and biopsy claims, where imaging or pathology results showing signs of cancer were misinterpreted or not acted upon.
Delayed referral claims, where a GP or hospital clinician failed to make an urgent two week wait referral in line with current guidance.
Wrong diagnosis claims, where a patient was incorrectly told they did not have cancer or was treated for a different condition entirely.
Claims arising from a failure to follow up abnormal screening results, including cervical, breast and bowel cancer screening.
Claims for reduced life expectancy and worsened prognosis caused by a diagnosis reached later than it should have been.
Claims on behalf of bereaved families where a delayed or wrong cancer diagnosis contributed to a patient’s death.

The above list is not exhaustive. If you have suffered from a cancer misdiagnosis and you believe the health care professionals who were meant to look after you were negligent, please talk to us. We will quickly be able to tell you if you have a compensation claim and will work tirelessly to ensure you get the compensation and treatment you need.

Why choose Law Lane for cancer misdiagnosis claims?

Our Cancer Misdiagnosis Solicitors know how devastating these types of claims can be, not least because you would have trusted the health professionals in question to give you an accurate diagnosis.

We are often instructed to advise and represent on highly complex medical negligence cases. Cancer misdiagnosis matters are particularly challenging as they involve proving that the delay in diagnosis caused a material difference in the outcome. This requires an assessment of the type of cancer, its growth rate, and the stage it would have been at the time of the missed or delayed diagnosis. For example, tumour growth rates, often measured by tumour volume doubling time, are critical in determining whether earlier intervention would have altered the prognosis. Even with a delay, some cancers may already have metastasised or reached an incurable stage, meaning the delay may not have worsened the prognosis. Therefore, expert evidence is essential to establish whether the delay materially affected the outcome. We work with consultant oncologists, radiologists and pathologists from the outset of every cancer misdiagnosis claim, in order to build a robust case from the beginning.

In addition, our team includes a former GP and former nurse acting as in-house medical consultants, bringing direct clinical knowledge to the assessment and management of claims. This dual medical/legal expertise means we can spend more time evaluating the merits of a medical negligence case and take on highly complex matters that other law firms often must refuse due to lack of in-house expertise.

Get in touch

Our clinical negligence team is ready to advise you and your family on your claim today. We understand the shock and distress a cancer misdiagnosis can cause, and we act with the urgency and sensitivity. Please contact us on 020 7870 4870 or email: clinicalnegligence@lawlanesolicitors.co.uk. You can also attend our free, no-obligation 30 minute consultation, held every Thursday between 11am and 1pm.

Law Lane Solicitors is proud to be accredited under The Law Society’s Immigration and Asylum Accreditation.

Got any questions?

* Required

"*" indicates required fields

Frequently Asked Questions – Cancer Misdiagnosis Claims

What counts as a cancer misdiagnosis?

A cancer misdiagnosis includes a missed diagnosis, a wrongly excluded diagnosis, a diagnosis reached later than it should have been, and a wrong diagnosis of cancer in a patient who did not have it. Each type can result in a compensation claim if the error fell below the standard of a responsible body of medical opinion and caused harm. We assess the medical records to establish exactly where the error occurred.

Do I need to prove earlier diagnosis would have changed my prognosis?

Yes, you need to show that a competent clinician would have diagnosed the cancer sooner, and that this earlier diagnosis would probably have led to a better outcome, whether in survival, treatment options or quality of life. This second element, causation, usually requires oncology expert evidence addressing the cancer’s likely stage and behaviour at the earlier point in time. Without evidence on both elements, a claim cannot succeed even where a clear error occurred.

How long do I have to bring a cancer misdiagnosis claim?

A claim must generally be brought within three years of the date you knew, or ought reasonably to have known, that your cancer diagnosis or treatment was affected by an error, under section 11 of the Limitation Act 1980. Where the claim is brought by a bereaved family after a patient’s death, the three year period runs from the date of death or the date of knowledge, whichever is later. We advise on the applicable date in every case we take on.

Can my family bring a claim if a loved one died from a missed cancer diagnosis?

Yes, a bereaved family can bring a claim where a missed or delayed cancer diagnosis contributed to a loved one’s death, combining a claim for the deceased’s pain and suffering with a dependency claim for financial losses. These claims can be brought alongside, or separately from, an inquest into the death. We advise families on both routes and coordinate them where appropriate.

What compensation is available in a cancer misdiagnosis claim?

Compensation covers general damages for pain, suffering and loss of amenity, alongside financial losses such as private treatment costs, loss of earnings, and care costs where the illness or its treatment has left lasting effects. Where a diagnosis error shortened life expectancy, compensation can also reflect the reduced quality and length of remaining life. We work with medical and financial experts to quantify every head of loss.

How much does an initial consultation cost?

We offer a fixed-fee initial consultation for cancer misdiagnosis matters. At that meeting, we review your medical history, advise on the legal basis for a claim and explain funding options, including conditional fee agreements.

You can also attend our free, no-obligation 30 minute consultation, held every Thursday between 11am and 1pm. Please contact us on 020 7870 4870 or email clinicalnegligence@lawlanesolicitors.co.uk to arrange this.