Book excerpt: With extensively revised content and an expanded contributor list of experts, Fenoglio-Preiser’s Gastrointestinal Pathology, Fourth Edition keeps you current in this fast-changing field. This highly regarded text remains your go-to reference on gastrointestinal pathology, with coverage of everything from anatomy, physiology, and histology to the full spectrum of congenital disorders, structural alterations, diseases, injuries, and other entities. This comprehensive reference is an ideal resource for pathologists, radiologists, gastroenterologists, and others interested in gastrointestinal diseases.