Gastrointestinal cancer may be diagnosed during the evaluation of symptoms or during a screening colonoscopy. When a cancer is diagnosed by one of the faculty of the Division, the faculty member will work closely with the Division of Hematology and Oncology and with surgeons to provide advice on treatment of cancer of the gastrointestinal tract and appropriate referral for treatment. Screening colonoscopy is provided (Endoscopy Unit). Some patients with familial polyposis or multiple family members with cancer may benefit from evaluation and education of cancer risk to themselves and family members. Such patients should be referred to Dr. Thomas McGarrity or to Maria Baker, Ph.D. (genetics counselor) for advice about genetic counseling.