Gastrointestinal Tumor Service

The Gastrointestinal Tumor Service (GITS) provides easy access to a multi-disciplinary team that specializes in the diagnosis, treatment and follow-up care of patients with gastrointestinal (GI) cancers . This includes those of the colon, stomach, small intestines, rectum, liver, pancreas, bile ducts, esophagus, anus and retroperitoneum.

One phone call to 865.305.4487 can put you in touch with our team of board certified physicians led by Dr. Keith Graya surgical oncologist . Our team of specialists have an interest and expertise in the evaluation, management and treatment of all GI cancers. Patient cases are reviewed at a weekly multidisciplinary tumor conference attended by surgeons, medical oncologists, radiation oncologists, gastroenterologists, radiologists, pathologists, genetic counselors and clinical nurses in order to determine the best treatment plan for the individual. This individualized treatment plan is designed to maximize outcomes and quality of life.

In partnership with the referring physician, the GITS will work to determine and complete the specific plan of care. Patients may be referred for only special diagnostic procedures or treatments and then returned to the referring physician for completion of their care plan and follow-up.

All specialists and procedures are available in one location on the campus of The University of Tennessee Medical Center.

The GITS at the University of Tennessee Medical Center Cancer Institute offers comprehensive education, prevention, risk reduction, diagnostic and treatment options that include:

For more information, call 865.305.4487 (GITS)

Areas of Treatment

  • Anus
  • Gallbladder
  • Liver
  • Rectum
  • Stomach
  • Esophagus
  • Large Intestine
  • Pancreas
  • Small Intestine 


The GITS is designed to expedite the care of patients referred with symptoms or findings suspicious for a GI malignancy or a confirmed cancer diagnosis. The GITS nurse navigator assists with the coordination of each referral while providing information, education and support for patients and their families.