Diagnosing Pancreatic Cysts
Pancreatic cysts are pockets of fluid that form on or inside the pancreas, which is a large organ behind the stomach. The pancreas plays an important role in digestion by making enzymes that help break down food in the small intestine and hormones like insulin, which helps control blood sugar levels.
To diagnose pancreatic cysts, doctors may use a mix of exams, screening tests, and procedures. These tests help confirm the presence of pancreatic cysts and determine their type, severity, or stage. Specialists who may be involved in diagnosing pancreatic cysts include gastroenterologists (digestive system doctors), hepatologists (liver doctors), and radiologists (imaging doctors).
Here are some common exams, screening tests, and procedures used to diagnose pancreatic cysts:
- Medical history and physical exam: A doctor will ask about your symptoms or factors that may be adding to your condition. They will do a physical exam to check for signs of pancreatic cysts, like pain in the upper stomach area, a lump, or a fever.
- Medical scans: Imaging scans like CT (computed tomography) or MRI (magnetic resonance imaging) scans are often used to find out what type of pancreatic cyst you have.
- Lab tests: Lab tests can give more information about your pancreatic cysts. A complete blood count (CBC) and comprehensive metabolic panel (CMP) may be done to check your overall health and look for any signs of infection or inflammation.
- Biopsy: In some cases, a biopsy may be needed to confirm the diagnosis of pancreatic cysts. A biopsy means taking a small sample of tissue to look at under a microscope. One type of biopsy procedure is called an endoscopic ultrasound with fine needle aspiration (EUS-FNA), where a thin needle is guided into the pancreas to collect tissue samples.
- Tumor marker tests: Blood tests can be done to check for tumor markers linked with pancreatic cysts, such as CA19-9, CEA, or B72.3. However, these tests are not usually reliable but can help show how well treatment is working.
To determine the type, severity, or stage of pancreatic cysts, additional exams, tests, or procedures may be performed:
- Endoscopic ultrasound (EUS): This procedure involves inserting a thin, flexible tube with a camera (endoscope) through the esophagus (the tube that carries food from the mouth to the stomach) and into the stomach to get a closer look at the pancreas. EUS can help identify details such as size, location, and features of the cysts.
- Additional imaging tests: Tests like angiography (an X-ray test that uses dye to see blood flow) or PET (positron emission tomography) scans may be used to create detailed pictures of the pancreas and nearby areas. These imaging tests can help identify details such as tumor size, how much it has spread, and if any nearby vessels are involved.
Remember that it's important to talk with your doctor if you're concerned about pancreatic cysts or any related symptoms. They will guide you through the appropriate diagnostic process based on your specific situation.