The overall objectives of this study focus on patients with either a personal or family history of gastrointestinal cancer, a hereditary gastrointestinal cancer susceptibility syndrome, and/or a gastrointestinal polyposis syndrome, and include:
1. Consent patients for genetic testing if genetic testing is deemed appropriate by the Cancer Risk Evaluation Program at UPHS after review of the patient's personal and family history.
2. Consent patients for inclusion into a registry entitled "Gastrointestinal Cancer and Polyposis Registry." This study includes a consent for genetic testing as well as for inclusion into a patient registry, therefore no outcome variables will be measured in this study. Any subsequent clinical study on the registry participants will necessitate additional IRB approval. N/A.
