Finding out you have pancreatic cancer — or that someone you love has it — is a shock. This page explains the basics in plain language, so the words your team uses start to make sense.
What pancreatic cancer is
The pancreas is a gland about 15 cm long that sits behind your stomach. It does two jobs: it makes juices that help digest food, and it makes hormones (including insulin) that control blood sugar. About 95 out of 100 pancreatic cancers start in the cells that make the digestive juices — these are called exocrine cancers, and the most common type is pancreatic ductal adenocarcinoma. A much rarer group starts in the hormone-making cells (neuroendocrine tumours); those behave quite differently and are not what this page is about.
Why it is often found late
Early pancreatic cancer usually causes no symptoms, and the pancreas sits deep in the abdomen where a small tumour can't be felt. Symptoms — yellowing of the skin or eyes (jaundice), dark urine, pale stools, pain in the upper tummy or back, weight loss without trying, loss of appetite, new diabetes — tend to appear only once the cancer is growing or blocking the bile duct. None of these automatically mean cancer, but they always deserve a prompt check.
What "stage" means
Staging describes how far the cancer has spread, and it drives every treatment decision. Your team will use two ways of describing it.
The number system (TNM staging):
- Stage 1 — the cancer is only in the pancreas and is 4 cm or smaller.
- Stage 2 — the tumour is larger than 4 cm, or cancer has reached 1–3 nearby lymph nodes.
- Stage 3 — cancer has reached 4 or more lymph nodes, or grown into the major blood vessels near the pancreas.
- Stage 4 — cancer has spread to distant organs such as the liver or lungs (also called metastatic).
The words used to plan treatment:
- Resectable — surgery can remove it; it hasn't grown into major blood vessels.
- Borderline resectable — it touches or involves a major vessel; surgery may be possible, often after chemotherapy first.
- Locally advanced — it has grown into nearby vessels so surgery can't safely remove it.
- Metastatic — it has spread to other organs.
Hearing "stage 3" or "unresectable" is frightening, but it is a planning category, not a verdict — chemotherapy can sometimes shrink a borderline or locally advanced tumour enough for surgery to become possible, and treatments for metastatic disease have improved meaningfully in the last decade.
What usually happens next
- Scans — a pancreatic-protocol CT (and sometimes MRI or PET) maps the tumour and its relationship to blood vessels.
- A biopsy — often via an endoscopic ultrasound (EUS), a thin scope passed through the stomach, to confirm the diagnosis under the microscope.
- Blood tests — including CA 19-9, a tumour marker used alongside scans to track how treatment is working (it is not used alone to make decisions).
- A multidisciplinary team (MDT) meeting — surgeons, oncologists, radiologists and others review your case together and recommend a plan. You can ask whether your case has been discussed at an MDT.
- Genetic testing — increasingly offered, because inherited changes (such as BRCA1/BRCA2) can open up specific treatment options like olaparib, and can matter for your family.
What you can do right now
- Bring someone with you to appointments — two sets of ears are better than one.
- Write questions down before you go (see the guide “Questions to ask at your next appointment” below).
- Ask for a dietitian early — pancreatic enzymes and nutrition support make a real difference to strength during treatment.
- Consider a second opinion at a centre that does a high volume of pancreatic surgery — it is a normal, reasonable request.
You do not have to take all of this in today. Your team expects questions, and asking them is part of good care, not a burden.