Diagnosing Small Intestine (Small Bowel) Cancer
Small intestine cancer is a rare disease that occurs when cells in the small intestines become malignant, meaning they grow and multiply in an uncontrolled way.
To diagnose small intestine cancer, doctors use a combination of examinations, screening tests, and procedures. These help confirm the presence of small intestine cancer and determine its type, severity, and stage. Here are the steps involved in diagnosing small intestine cancer:
- Medical History and Physical Exam: The process starts with a doctor taking your medical history and conducting a physical exam. They will ask you questions about your symptoms, family history, and any previous diagnoses.
- Blood Tests: Blood tests may be ordered to check for any abnormalities that could indicate the presence of small intestine cancer. These tests can include a complete blood count (CBC), basic metabolic panel, and liver function tests.
- Biopsy: A biopsy is often necessary to confirm the diagnosis of small intestine cancer. During a biopsy, a small sample of tissue is taken from the suspicious area in the small intestine and examined under a microscope. This helps determine if cancer cells are present.
- Endoscopy: An endoscopy may be used to identify cancerous changes in the small intestine that other imaging techniques cannot detect. It involves inserting a flexible tube with a camera into the digestive tract to visualize the area.
- Colonoscopy: A colonoscopy may also be performed to examine the large intestine for any signs of cancer that may have spread from the small intestine.
- Imaging Tests: Various imaging tests are used to visualize the small intestine and detect any abnormalities. Common imaging tests include:
- X-ray Imaging: X-rays can provide a detailed view of the small intestine and help identify any suspicious areas.
- MRI scan: Magnetic resonance imaging (MRI) uses powerful magnets and radio waves to create detailed images of the small intestine. It can help detect tumors and determine their size and location.
- CT scan: A computed tomography (CT) scan combines multiple X-ray images to create cross-sectional images of the small intestine. This test can provide detailed information about the tumor's size, shape, and spread.
- Additional tests for characterization: If lymphoma is suspected as the type of small intestine cancer, additional tests may be done to further characterize it. These tests can include flow cytometry or immunohistochemistry to analyze specific markers on lymphoma cells.
Once diagnosed with small intestine cancer, further examinations, tests, or procedures may be done to determine its type, severity, or stage. These additional steps can include:
- Staging Imaging Studies: Additional imaging studies such as PET scans (positron emission tomography) or bone scans may be performed to determine if the cancer has spread beyond the small intestine.
- Surgical Procedures: In some cases, surgery may be necessary to remove part or all of the affected area in order to determine its stage or extent.
- Molecular Testing: Molecular testing analyzes genetic changes within tumor cells to help guide treatment decisions and assess prognosis.
Specialists involved in diagnosing small intestine cancer:
- Gastroenterologist: A gastroenterologist specializes in diagnosing and treating diseases of the digestive system, including cancers affecting the small intestine.
- Oncologist: An oncologist is a specialist who focuses on diagnosing and treating various types of cancers.
- Pathologist: A pathologist analyzes biopsy samples under a microscope to determine if cancer cells are present.
By combining these examinations, tests, and procedures, doctors can accurately diagnose small intestine cancer and gather important information about its type, severity, and stage. It's important to consult with a doctor who will tailor these diagnostic steps based on individual circumstances.