Five outstanding speakers will present a workshop based on material from the upcoming fifth volume of the series, Surgical Pathology of Tumors of Domestic Animals: Tumors of the gastrointestinal system. This meeting will target veterinary students, interns, residents, and anatomic pathologists involved in diagnostics. The conference will be organized into presentations and case-based interactive discussions with digital microscopy files available to registrants prior to the meeting. Case presentations will be used to illustrate the approach and diagnostic features of different GI tumors and their main differential diagnoses.