Second opinion

Requesting a second opinion

When it is worth it, what documentation is needed, and how it works — for patients from Spain and from abroad.

Asking for a second opinion is not a vote of no confidence in anyone. In peritoneal disease and retroperitoneal sarcoma it is normal practice, and in some situations it is the sensible thing to do: these are rare diseases, the surgical decision is rarely obvious, and the team's experience changes the outcome.

This page explains when it is worth it, what to send so the review is actually useful, and what to expect from the process.

When it is worth asking

There are four situations in which a second opinion changes decisions most often:

  • You have been told there is nothing to be done. In peritoneal disease — and especially in pseudomyxoma and epithelioid mesothelioma — the criteria that rule surgery out are not those of other tumours.
  • You have been offered an operation and want it checked. Cytoreductive surgery is long and carries real risk: understanding why it is indicated, and what happens if it is not done, is part of deciding.
  • The case has not been discussed by a unit with volume in that specific disease. A general tumour board and a peritoneal or sarcoma board do not see the same things.
  • There is a retroperitoneal mass that has not yet been operated on or biopsied. This is the moment when a specialist assessment changes most, because the first operation is the one that decides.

What to send

For the review to be useful, the studies themselves have to be seen, not just the reports. What is needed:

  • Imaging in digital form: CT, MRI or PET. The full study rather than the report — what decides resectability is the distribution of disease, and that is visible only in the images.
  • The pathology report, and the specimen number if possible. In sarcoma and mesothelioma the subtype changes the whole plan.
  • Operative notes from any previous surgery, including any laparoscopy or appendicectomy.
  • Medical oncology reports with treatments received and their dates.
  • A summary of your current situation: how you are, what medication you take, and what has been proposed.

How it works

The documentation is reviewed before the visit. That is what allows the consultation to be about decisions rather than about reading papers in front of you.

In many cases the assessment is completed with further imaging or a diagnostic laparoscopy, because CT falls short for small-volume disease, particularly over the small bowel.

The conclusion may be that surgery is indicated, that it is not, or that something needs doing before deciding. All three are useful answers, the second one included: knowing why surgery is not on the table saves searching that only costs time.

If you are travelling

Patients from other regions and other countries are seen. For anyone travelling a distance, the practical approach is to send the documentation in advance and settle as much as possible in writing or in an online consultation before organising a trip.

Follow-up afterwards is coordinated with your own physician, who is the one who will be nearby the rest of the time.

What a second opinion is not

It is not an emergency service. If you have symptoms that need immediate attention — high fever, severe pain, bleeding, an inability to eat or drink — what you need is an emergency department, not a scheduled appointment.

Nor is it a formality for obtaining a yes. An honest review may confirm what you were already told, and that is information too: it closes the question and lets you get on with treatment without the feeling of having left something unasked.

Frequently asked questions

What patients ask in clinic

When is a second opinion worth having?
Above all if you have been told there is nothing to be done, if you have been offered major surgery and want it checked, if the case has not been discussed by a unit with volume in that specific disease, or if there is a retroperitoneal mass not yet operated on or biopsied.
What documentation do I need to send?
Imaging in digital form — the full study, not the report — the pathology, operative notes from previous surgery, medical oncology reports with dates, and a summary of your current situation and medication.
Is the CT report enough, or are the images needed?
The images are needed. What decides whether peritoneal disease can be removed in full is its distribution, and that cannot be inferred from a report: the study has to be seen.
Are patients from outside Madrid or from abroad seen?
Yes. For anyone travelling a distance the sensible approach is to send documentation in advance and settle as much as possible in writing or in an online consultation beforehand, with follow-up coordinated with each patient's own physician.
I have been told my disease is inoperable. Is it worth pressing?
It is worth reviewing, which is not the same as pressing. In pseudomyxoma peritonei and epithelioid mesothelioma the operability criteria are not those of other tumours, and what rules surgery out is the distribution of disease rather than its quantity. An honest review may confirm the first assessment — and that closes the question too.

Sources

  1. Operability criteria and the role of diagnostic laparoscopy: the author's monograph on peritoneal carcinomatosis, Madrid, 2026.
  2. Reference-centre treatment recommendations: TARPSWG and EURACAN for retroperitoneal sarcoma; PSOGI for peritoneal surface malignancy.

Would you like a second opinion?

Send imaging and reports ahead of the visit so the case can be reviewed properly. Patients from outside Madrid and from abroad are seen.