The goal of this study is to create a registry of patients with gastrointestinal malignancies. This registry will provide important information about the types of gastrointestinal cancers seen at the institution, their presentation, and course of disease. We plan to review, analyze pathological features, clinical features, and other parameters of digestive diseases as related to types of treatment, patterns of care, time to progression, and survival at NYPH-Weill Cornell Medical Center.