If gastrointestinal cancers are suspected, the following may be conducted:

  • Endoscopy or esophagogastroduodenoscopy: evaluates the lining of the esophagus, stomach and small intestine for tumors.
  • Colonoscopy: checks the colon and rectum for polyps.
  • Lab tests: searches for changes I the blood.
  • Imaging: including MRI, X-Ray, ultrasound, CT or PET scans, looks for abnormal tissue in the digestive system.
  • Biopsy: evaluates sample obtained for cancer cells.