This course provides an intensive, practical, and comprehensive review of the current concepts in diagnostic surgical pathology of the esophagus, stomach, small intestine, colon, appendix, anus, liver, gallbladder, pancreas, and peritoneum. The lectures will emphasize current nomenclature and classification, histopathologic diagnostic and differential diagnostic criteria, and clinicopathologic correlations, and will highlight the role of adjunct special studies in diagnostic gastrointestinal, liver, gallbladder and pancreatic pathology wherever appropriate. The course will cover all major inflammatory, infectious, preneoplastic and neoplastic, congenital, toxic-metabolic, and iatrogenic diseases of the tubal gut, liver, gallbladder, and pancreas. Emphasis will be placed on the role of the pathologist in the diagnosis and reporting of endoscopically obtained biopsy and resection specimens. Personal interaction with the course faculty will be provided in the form of question and answer sessions and in slide seminars. A comprehensive course syllabus will be provided to each participant. A CD-ROM including PDFs of lectures and photographs of the cases discussed in the slide seminars, as well as samples of the entities presented during the course, will be provided to all participants.