Mayo Clinic Gastroenterology and Hepatology Board Review book has been designed to succinctly and clearly assist both physicians-in-training who are preparing for the gastroenterology board examination and the increasing number of gastroenterologists awaiting recertification. The text provides a review of essential knowledge in gastroenterology, hepatology, and integral relevant related areas of pathology, endoscopy, nutrition, and radiology, to name a few. Clinical knowledge related to diagnostic and theraputic approaches to patient management is also emphasized. Although less detailed than encyclopedic textbooks, this board review provides much more information than outline booklets. Clinical knowledge to enhance patient management, rather than the latest scientific advances is emphasized. For persons preparing for their board examination, each subspecialty section concludes with a case-based presentation and numerous board examination-type single best-answer questions with annotated answers are provided. The faculty authoring this book are all Mayo Clinic gastroenterologists and hepatologists who spend most of their time caring for patients and teaching in a academic environment. Because of this overlapping, yet diverse, expertise, the text provides broad expertise across all of gastroenterology and hepatology.