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Pancreatic Cancer
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Endocrine System

Pancreatic Cancer

Pancreatic cancer is often difficult to detect early due to vague symptoms and the organ's hidden location, making timely diagnosis and treatment critical.

Overview

The pancreas is a gland behind your stomach and in front of your spine. It produces the juices that help break down food and the hormones that help control blood sugar levels. Pancreatic cancer usually begins in the cells that produce the juices.

Causes & Risk Factors

Some risk factors for developing pancreatic cancer include:

  • Smoking
  • Long-term diabetes
  • Chronic pancreatitis
  • Certain hereditary disorders

Diagnosis

Pancreatic cancer is hard to catch early because it doesn't cause symptoms right away. When symptoms do occur, they are often vague and may include:

  • Yellowing of the skin and eyes
  • Pain in the abdomen and back
  • Weight loss
  • Fatigue

Because the pancreas is hidden behind other organs, health care providers cannot see or feel the tumors during routine exams. Doctors use a physical exam, blood tests, imaging tests, and a biopsy to diagnose it.

Treatment & Management

Because it is often found late and it spreads quickly, pancreatic cancer can be hard to treat. Possible treatments include surgery, radiation, chemotherapy, and targeted therapy. Targeted therapy uses drugs or other substances that attack specific cancer cells with less harm to normal cells.

Frequently Asked Questions

Early symptoms are notoriously vague and frequently attributed to less serious conditions. Common early indicators include a persistent, dull ache in the upper abdomen that radiates to the back, particularly after eating, and unexplained weight loss despite a normal or increased appetite. Other subtle signs include new-onset diabetes or a sudden worsening of blood sugar control in a person with existing diabetes, as well as fatigue and loss of interest in food. Because these symptoms overlap with gastritis, ulcers, or stress, they are often ignored until the cancer has progressed, making it essential to consult a doctor if these issues persist for more than two weeks.
biopsy is typically obtained using Endoscopic Ultrasound (EUS), where a thin, flexible tube with an ultrasound probe is passed down the throat to the stomach and duodenum. The doctor uses the ultrasound image to guide a fine needle through the wall of the stomach or duodenum into the pancreas to collect tissue samples. While generally safe, risks include bleeding, infection, or pancreatitis (inflammation of the pancreas), which can cause severe abdominal pain. In rare cases, the needle track can potentially spread cancer cells, though this is extremely uncommon with modern techniques.
Routine blood tests cannot diagnose pancreatic cancer on their own, but the tumor marker CA 19-9 is often measured. CA 19-9 levels can be elevated in pancreatic cancer, but they can also be high in benign conditions like jaundice, pancreatitis, or liver disease, so it is not specific enough for diagnosis. It is primarily used to monitor the effectiveness of treatment and detect recurrence in patients who have already been diagnosed. A normal CA 19-9 level does not rule out cancer, and an elevated level does not confirm it; imaging and biopsy remain the gold standards for diagnosis.
Resectable cancer means the tumor is confined to the pancreas and can be completely removed by surgery, which offers the best chance for long-term survival. Borderline resectable cancer involves tumors that are close to major blood vessels, making surgery difficult; these patients often receive chemotherapy first to shrink the tumor before attempting surgery. Locally advanced cancer has spread to nearby major blood vessels or organs, making surgical removal impossible; treatment focuses on chemotherapy, radiation, and targeted therapies to control growth and alleviate symptoms. The classification is determined by detailed imaging (CT or MRI) and directly dictates whether surgery is the primary goal or if systemic therapy is the mainstay of treatment.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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