Forsyth Medical Center 
Diagnostic Tests
Colorectal Cancer Diagnosis
| Colorectal cancer is the second leading cause of cancer deaths in the United States. |
Detecting and diagnosing colorectal cancer in its early stages increases chances of successful treatment.
After a complete physical exam and evaluation of family and medical history, your physician may order further tests if symptoms of colorectal cancer are present.
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Do you have specific questions about colorectal cancer? Visit our Health Library for answers. |
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Diagnostic procedures may include the following:
- Digital rectal examination (DRE)
- Fecal occult blood test
- Sigmoidoscopy
- Colonoscopy
- Barium enema
- Biopsy
- CEA assay
Biopsy
During a colonoscopy procedure, a small piece of tissue (biopsy) is removed from the colon using a colonoscope. The tissue is then sent to the lab for analysis to see if cancer cells are present.
CEA Assay
This test measures a protien called carcinoembryonic antigen. This protein is sometimes higher in people with colorectal cancer.
