Veterinary Oncology Support: When Should You Involve a Specialist?
Updated: Oct 2
There isn't a single point at which every cancer patient suddenly becomes an "oncology case".
However, there are several situations where I'd particularly encourage a first opinion vet to consider getting oncology input.
1. When staging decisions aren't clear
Does this tumour need staging? What should staging include? And, importantly, will the results change what we do?
Staging isn't necessarily an identical checklist for every patient.
The appropriate approach depends on the tumour, the individual patient and what we're trying to establish before making a treatment decision.
This is a very good point at which a relatively early oncology discussion can help shape the next steps.
2. When you're unsure what to sample next
Perhaps you've found an unexpected mass or enlarged lymph node. Perhaps you've already obtained cytology or histology but the clinical picture still doesn't quite fit.
I would highlight unexpected lymph node enlargement as one situation where oncology input may be useful.
Rather than automatically moving on to the next investigation, it can be useful to ask what information we actually need and which test is most likely to provide it.
3. When tumour behaviour doesn't match the histology
This is another situation where I'd want to look at the whole case rather than a single result in isolation.
If the reported histology suggests one thing but the patient's disease appears to be behaving differently, that's a reasonable point to stop and reconsider the picture.
Is further investigation warranted? Is additional staging appropriate? Do we need another opinion?
Tumour behaviour that doesn't match histology is one of the scenarios where the original OncoTails guidance recommends considering specialist oncology input.
4. When surgical margins are incomplete
An incomplete margin doesn't automatically tell us what should happen next.
Depending on the tumour and the individual circumstances, the discussion may include further surgery, monitoring, additional treatment or other options.
This is exactly the kind of decision where having an oncologist review the pathology alongside the wider clinical picture can be useful.
5. When there is more than one reasonable treatment option
Sometimes the difficulty isn't a lack of options.
It's having several options.
When surgery, chemotherapy, radiotherapy, medical management or a palliative approach could potentially form part of the discussion, the question becomes which route best suits the individual patient and the owner's goals.
Specialist input can help put those choices into context, including what we're realistically hoping to achieve, likely benefits and limitations, and what each pathway could mean for the patient.
What does veterinary oncology support include?
This is worth explaining because veterinary oncology support doesn't have to mean simply referring a patient away for treatment.
With OncoTails, specialist oncology input can include:
diagnostic planning
staging strategy
interpretation of results
treatment decision support
second opinions for complex or uncertain cases
The purpose is to provide specialist input alongside the veterinary practice, rather than automatically taking the case away from the primary care team.
That distinction matters.
RCVS guidance similarly distinguishes between referrals and second opinions, and notes that a referral can relate to diagnosis, a procedure and/or treatment before a case is returned to the referring veterinary surgeon. Royal College of Veterinary Surgeons
How does remote veterinary oncology case support work?
Not every oncology question requires the patient to travel somewhere else.
Remote oncology support allows a veterinary team to obtain specialist input into an existing case, using the relevant clinical history, diagnostic results and other case information to help inform the next steps.
That might mean discussing what to investigate next, interpreting results already obtained, developing a staging strategy or considering treatment options.
For first opinion practices, this can be particularly useful when you are comfortable continuing to manage the patient but would value specialist oncology input into a particular part of the case.
And if the patient does need referral for a particular investigation or treatment, specialist input can help identify that too.
Can specialist oncology support help keep cancer care local?
In appropriate cases, yes.
Keeping care within the first opinion practice can have practical advantages when the investigations or treatment required can appropriately be delivered there.
The aim isn't to avoid referral when referral is needed.
It's to determine what actually needs to happen, where it needs to happen and which elements of care can appropriately remain with the patient's usual veterinary team.
That can create a more collaborative model in which the first opinion vet remains closely involved while accessing specialist oncology expertise when needed.
For OncoTails, that's an important part of what "keeping care close to home" means.
Can oncology support improve workflow within a vet practice?
It can help particularly at the points where a case has become difficult to progress.
Instead of a team spending time trying to determine which investigation should come next or how several treatment options compare, specialist case input can provide a clearer clinical direction.
That may include deciding whether further staging is useful, interpreting results in context, identifying when referral is warranted, or developing a treatment plan that can be managed collaboratively.
The aim isn't to replace the clinical judgement of the primary vet. It's to add oncology expertise at the points where it is useful.
What about chemotherapy and oncology safety?
Practices managing oncology patients may also need support beyond diagnosis and treatment selection.
OncoTails can provide veterinary teams with oncology support around the practicalities of cancer treatment and case management, including helping teams navigate treatment pathways safely and confidently.
For practices wanting to develop the oncology care they can provide locally, this can form part of a wider collaborative relationship rather than support being limited to a single difficult case.
Earlier input can sometimes make the next step clearer
Perhaps the most important point is that you don't need to have exhausted every option before asking an oncologist for an opinion.
If you're looking at a case and wondering:
Do I stage this?
What should I sample?
Should this patient have surgery?
Is this something I can manage here?
Does this patient need referral?
Which of these treatment options makes most sense?
…that may already be the right time to ask.
Early oncology input can help simplify complex treatment decisions.
Need oncology support with a case?
OncoTails provides specialist veterinary oncology support to first opinion practices, from diagnostic planning and staging through to treatment decisions, second opinions and ongoing case support.
If you have a cancer case where the next step isn't clear, you don't necessarily need to work it out alone.
Dr Sarah Mason FRCVS Veterinary Oncologist & Founder, OncoTails
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