Pancreatic cancer

Pancreatic carcinoma, pancreatic tumor

Pancreatic cancer (pancreatic carcinoma) is one of the most common types of cancer in western industrialized countries. The earlier it is detected, the better the chances of recovery.

What is pancreatic cancer?

Pancreatic cancer, also known as pancreatic carcinoma, is a malignant tumor of the pancreas. A distinction can be made between different pancreatic carcinomas:

  • If the cancer develops in the so-called “head” of the pancreas near the bile duct, it is known as pancreatic head carcinoma.
  • In over 95 percent of cases, pancreatic cancer occurs in the part of the gland that produces and secretes digestive enzymes. Then it is an exocrine pancreatic carcinoma. This type of cancer is also called adenocarcinoma.
  • Less frequently, the cancer originates from the hormone-producing (endocrine) cells of the pancreas. These tumors are often less aggressive and are treated differently.
Illustration Krebs im Kopf der Bauchspeicheldrüse

Cancer in the head of the pancreas

Pancreatic cancer: frequency and age

Pancreatic cancer usually only occurs at an advanced age. The average age of onset for men is around 70 years and for women around 75 years. In Switzerland, around 1,300 people are diagnosed with pancreatic cancer every year. This corresponds to around three percent of all cancers.

Pancreatic cancer is usually only discovered at an advanced stage. The cancer has then often already visibly or invisibly spread to other organs, i.e. formed metastases. Early diagnosis offers better treatment options.

Pancreatic cancer: causes and risk factors

There is often no tangible reason why a person develops pancreatic cancer. However, there are various factors that increase the risk.

Risk factors for pancreatic cancer

Lifestyle and certain pre-existing conditions can increase the risk of developing pancreatic cancer. Typical risk factors are

Genetic factors

Hereditary predisposition can play a role in the development of pancreatic cancer. If a relative or first-degree relative (parents, siblings, children) has pancreatic cancer, the likelihood of developing pancreatic cancer yourself is higher. Pancreatic cancer also occurs more frequently in the context of so-called tumor predisposition syndromes such as hereditary breast-ovarian cancer syndrome.

Symptoms: Pancreatic cancer is very difficult to detect

Pancreatic cancer often causes hardly any symptoms in the early stages. Specific symptoms often only appear at an advanced stage. Classic signs of pancreatic cancer are jaundice, upper abdominal pain and weight loss. The growing pancreatic tumor can also impair the production of digestive juices in the pancreas or their drainage into the duodenum. This leads to increased excretion of undigested fat in the stool (so-called fatty stools).

More advanced tumors can cause the following symptoms:

  • Loss of appetite
  • Feeling of pressure in the stomach
  • Back pain
  • Weight loss
  • Nausea
  • Vomiting
  • Upper abdominal pain
  • Jaundice

Pancreatic cancer: Diagnosis with us

Early diagnosis is very important in the case of pancreatic cancer. This means that there is at least a small chance of completely removing the tumor surgically and, in combination with chemotherapy, curing it in individual cases. If you notice symptoms, it is therefore advisable to always get to the bottom of them at an early stage.

If pancreatic cancer is suspected, the next step is to determine the location, extent and spread of the pancreatic cancer. After this tumor staging, the subsequent therapy is planned as part of the tumor board.

Examination methods for suspected pancreatic cancer

  • Medical consultation (medical history) and physical examination: During the consultation, we clarify any complaints and risk factors as well as pre-existing and concomitant illnesses with you.
  • Blood tests (laboratory tests): We can take blood samples if pancreatic cancer is suspected and have them tested for “liver values” and specific tumor markers in the blood.
  • Ultrasound examination (sonography): Another option is an ultrasound examination. With this imaging procedure, we can detect larger tumors in particular and determine their location and spread. Smaller pancreatic carcinomas are difficult to detect using this method.
  • Endosonography: This endoscopic ultrasound examination also detects smaller pancreatic carcinomas. It helps us to determine how far the pancreatic cancer has spread before a planned operation.
  • Computed tomography (CT): On the CT scan, we can see exactly how large the pancreatic cancer is and how far it has spread. Smaller pancreatic carcinomas are therefore more difficult to detect.
  • Magnetic resonance imaging (MRI): If standard examinations such as ultrasound and CT are not sufficient, we can use special procedures (MRCP and MR angiography) to visualize the bile and pancreatic ducts or the blood vessels in the abdominal cavity.
  • Abdominal endoscopy (laparoscopy): An endoscopy of the abdominal cavity helps to accurately assess the extent of pancreatic cancer. The procedure is performed under general anesthesia.
  • Biopsy: We take a tissue sample for a reliable diagnosis of pancreatic cancer. Tissue can also be removed during endosonography or surgery.
  • Endoscopic retrograde cholangiopancreatography (ERCP): ERCP is a special examination of the bile ducts, the gallbladder and the pancreatic duct system. It takes place as part of an endoscopy. It can help to eliminate bile stasis if the tumor is squeezing the bile duct.
  • Positron emission tomography (PET/CT): A whole-body image is taken in which possible spread to neighboring organs such as the lungs, liver or bones can be detected. This method can also be used to visualize very small metastases

Four stages of pancreatic cancer

Pancreatic cancer can be divided into four stages depending on the extent of the malignant tissue change (UICC 8th Edition AJCC):

  • Stage 1: The tumor affects only the pancreas
  • Stage 2: The tumor has a diameter of more than four centimeters. Alternatively, if the tumor is smaller, lymph nodes are already affected.
  • Stage 3: Surrounding lymph nodes are increasingly affected. The tumor grows and can grow into larger blood vessels.
  • Stage 4: Metastases are present in other organs, especially liver metastases.

Pancreatic cancer: prevention, early detection, prognosis

You can prevent pancreatic cancer by avoiding the known risk factors and maintaining a healthy lifestyle:

  • Make sure you eat a balanced diet with plenty of fruit and vegetables.
  • Avoid being very overweight.
  • Refrain from smoking.
  • Avoid excessive alcohol consumption.

Progression and prognosis of pancreatic cancer

The chances of a cure for pancreatic cancer are still low, with only around 10% of all patients still alive five years after initial diagnosis. Early detection of pancreatic cancer is beneficial for the prognosis. If the tumor is small and the surrounding vessels and lymph nodes are not affected, the best chance of recovery is complete surgical removal followed by six months of chemotherapy. Pancreatic tumors that originate from the hormone-producing cells, so-called neuroendocrine pancreatic tumors, have significantly better chances of recovery.

Medical checkup – more information

Self-help groups

The exchange with people who are affected by the same disease can be a great support in coping with the disease. Advice on finding a suitable self-help group is available from Selbsthilfe Zürich. Self-Help Zurich and the University Hospital Zurich are cooperation partners in the national project “Health literacy thanks to self-help-friendly hospitals”.

Pancreatic cancer: Treatment - chemo or surgery?

If pancreatic cancer is discovered in time, we try to remove the tumor during an operation. Afterwards, chemotherapeutic follow-up treatment is essential, as otherwise the relapse rate is over 90%. If the pancreatic cancer is too advanced, surgery is no longer possible. The tumor can then be pre-treated with highly effective chemotherapy. In some cases, this makes surgery possible. In cases where this does not occur or the tumor has already visibly metastasized, palliative therapy using chemotherapy and, in rare cases, radiotherapy can prolong survival with the disease, alleviate the course of the disease and improve quality of life.

FAQ on the topic of pancreatic cancer

The first signs are often unspecific and easy to overlook. These include an unclear feeling of pressure or pain in the upper abdomen, which can radiate to the back, as well as general fatigue and loss of appetite. Occasionally the skin and eyes turn yellow, so that further clarification should be initiated urgently. Unwanted weight loss or night sweats could also be indicative.

Classic warning signs of pancreatic cancer, which often only appear at a more advanced stage, are jaundice, persistent upper abdominal pain (which can also radiate to the back) and unexplained weight loss. Other signs may include nausea, vomiting and fatty stools.

Pancreatic cancer can grow unnoticed at first, as it only causes clear symptoms at an advanced stage. For this reason, the diagnosis is often not made until the tumor is already large or has spread.

Pancreatic cancer usually occurs at an advanced age. The average age of onset is around 70 years for men and around 75 years for women.

Yes, a hereditary predisposition can play a role in the development of pancreatic cancer. The risk is increased if first-degree relatives (parents, siblings, children) are affected or if tumor predisposition syndromes such as hereditary breast-ovarian cancer syndrome are present.

There are clearly defined precursors of pancreatic cancer, which often appear as cystic changes in the pancreas. The most widespread of these precursors are known as intraductal papillary mucinous neoplasms (IPMN), specifically MD-IPMN. If these precursors are recognized as a risk and removed in time, the development of pancreatic cancer can be prevented (note: not all of these IPMNs are associated with tumour development).

The chances of a cure for malignant pancreatic cancer are low, but in individual cases there is the possibility of a cure. This is most likely to be the case if the tumor is detected early and complete surgical removal followed by chemotherapy is possible before metastases have developed.

Unfortunately, the prognosis is often unfavorable, as the disease is usually diagnosed late. Across all stages, around 10% of those affected are still alive five years after diagnosis. The chance of survival is significantly higher (30%) for a small, non-spread tumor that can be operated on.

Life expectancy depends largely on the stage at diagnosis. In advanced disease with metastases, the average survival time is often only a few months to a year. If the tumor is operable, life expectancy can be several years.

The tumor often initially spreads to the surrounding lymph nodes. Metastases most frequently form in the liver via the bloodstream, as the blood from the digestive tract flows directly there. Later, the lungs, peritoneum and bones can also be affected

Death usually occurs as a result of the progressive spread of the tumor. Common causes are multiple organ failure, especially liver failure due to metastases, or severe physical emaciation (tumor cachexia). Severe infections or blood clots (thromboembolism) can also be fatal.