Cancer misdiagnosis: expert witnesses
The claim usually turns on what the delay changed: stage at diagnosis, the treatment required and the prospects that remain. That evidence is oncological, built on how the referral, imaging or histology should have been read.
The evidence
The disciplines this matter instructs
The register should be searched by the question a practitioner is asked to answer, not by a generic medical title.
Select the relevant disciplines, then agree scope, fees and availability directly with the practitioner.
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The context behind the instruction
Clinical negligence procedure differs between England and Wales, Scotland and Northern Ireland, including how expert evidence is exchanged. The clinical questions of staging and causation are the same in each.
These claims are a form of clinical negligence. For nation-specific context, see expert evidence across the UK. The register does not determine legal issues or provide legal advice.
Report routes
Reports commonly considered
breach and causation reports and condition and prognosis reports address separate questions: whether the diagnosis should have been made earlier, and what the delay now means for treatment and outlook. Their scope should follow the issues, available records and the questions put to the expert.
Directory search
Cancer misdiagnosis and delayed diagnosis listings
Questions answered
Frequently asked questions
Which disciplines are instructed in cancer misdiagnosis cases?
The discipline follows the question in issue - breach, causation, condition or future needs - and cancer misdiagnosis cases often need more than one to tell the whole story. This page maps the specialties most commonly instructed, each opening the register already filtered, so a shortlist is one click away.
Can one expert deal with both breach and causation in a cancer misdiagnosis case?
Sometimes, where both questions sit within a single specialty - but courts expect an expert to stay within their own expertise, so the two are often split across disciplines. The disciplines mapped above reflect the usual division of labour for this claim type.
What must a cancer misdiagnosis expert report comply with?
In England and Wales, CPR Part 35 and its Practice Direction: the expert's qualifications, the material relied on, the basis of each opinion, the range of reasonable opinion where it exists, and the statement of truth. The other UK jurisdictions impose equivalent requirements, and the report follows the forum it is written for - a CICA application, a redress scheme or the Court of Protection each expect their own format.
Can an addendum or supplementary report be requested as the case develops?
Yes - new records, Part 35 questions or a changed prognosis are routinely dealt with by addendum rather than a fresh instruction, and continuity with the original expert is usually the efficient route. The register's report-type pages cover the formats, from screening and records review through to joint statements and addendum reports.