Pancreatic Cancer

Pancreatic Cancer occurs as abnormal growth of cells in within the tissues of pancreas. Pancreas is an organ location in the abdomen behind the stomach. Its major role is to produce enzymes that help the body digest fats, carbohydrates & proteins.

Owing to the location of pancreas, pancreatic cancer is difficult to detect & is diagnosed only in advanced stages. Pancreatic cancer is classified into two types based on which function of pancreas (endocrine or exocrine) is affected.

What are the Symptoms?

Pancreatic cancer does not present any symptoms until it reaches advanced stages. Some of the common symptoms include:

  • Loss of appetite
  • Unintentional weight loss
  • Pain in the abdomen
  • Pain in the lower back
  • Blood clots
  • Jaundice
  • Depression

What are the Causes?

It’s not clear what causes pancreatic cancer. Doctors have identified some factors that may increase the risk of this type of cancer, including smoking and having certain inherited gene mutations.

Pancreatic cancer occurs when cells in your pancreas develop changes (mutations) in their DNA. A cell’s DNA contains the instructions that tell a cell what to do. These mutations tell the cells to grow uncontrollably and to continue living after normal cells would die. These accumulating cells can form a tumor. When left untreated, the pancreatic cancer cells can spread to nearby organs and blood vessels and to distant parts of the body.

Most pancreatic cancer begins in the cells that line the ducts of the pancreas. This type of cancer is called pancreatic adenocarcinoma or pancreatic exocrine cancer. Less frequently, cancer can form in the hormone-producing cells or the neuroendocrine cells of the pancreas. These types of cancer are called pancreatic neuroendocrine tumors, islet cell tumors or pancreatic endocrine cancer.

How is it Diagnosed?

Your doctor may recommend blood tests to detect the chemical released by the cancer cells into the blood and Liver function tests to detect bile duct blockage.

Certain imaging tests may be required to identify the tumour & ascertain how far it has spread. Some of the tests include:

  • Endoscopic Ultrasound
  • CT Scan or PET Scan
  • MRI
  • X Ray
  • Angiogram
  • A biopsy may also be recommended by the doctor to confirm the diagnosis

What are the Risk Factor?

Although the exact cause of pancreatic cancer remains unknown, the scientific community has identified certain risk factors:

  • Genetic Factors: An individual with certain genetic syndromes (such as breast or ovarian cancer, melanoma, pancreatitis or colorectal cancer) is at a greater risk of developing pancreatic Cancer.
  • Gender: Research indicates that men are at a higher risk of pancreatic cancer compared to women.
  • Exposure to toxins: Exposure to certain pesticides & chemicals can damage and affect the ability of pancreas to function normally.
  • Medical Factors:
    • Liver Cirrhosis
    • Bacterial infections such as H.pylori
    • Diabetes
    • Chronic Pancreatitis
    • Periodontal disease or gingivitis
  • Lifestyle Factors: Certain lifestyle factors tend to increase risk of pancreatic cancer. Some of these include:
    • Smoking or Passive Smoking
    • Obesity
    • A diet high in red meat & fat
    • Excessive consumption of alcohol for a long period of time

How is it Treated?

Treatment for any cancer depends on many factors such as:

  • Type of Cancer
  • Stage of Cancer
  • Age & general health condition of the patient
  • Patient’s choice

Chemotherapy, Radiation Therapy & Surgical intervention are the three most common treatment modalities for cancer.

For pancreatic cancer treatment, the following three surgical procedures are the most commonly used.

  • Whipple procedure: This is a complex surgical procedure used when the head of the pancreas is affected  by cancer. In this, the either just the pancreas head or the entire pancreas is removed along with a part of the stomach, duodenum, lymph nodes & other tissues. However, there are complications to this surgery which include infection, bleeding & problems in the stomach.
  • Distal Pancreatectomy: In this procedure, a certain part of the pancreas is removed along with the spleen.
  • Total Pancreatectomy: This is a procedure in which the entire pancreas & spleen are removed through surgery. Although a person can survive without pancreas, he or she is highly likely to get diabetes as the body does not produce insulin anymore.