Part 1. Pharynx/Esophagus -- 1. Benign structural and functional abnormality of the esophagus, postop. Complication of the esophagus -- 2. Esophagitis -- 3. Benign and malignant tumor of the esophagus -- Part 2. Stomach/Duodenum -- 4. Benign structural & functional abnormality of the stomach and duodenum -- 5. Inflammatory and infectious diseases of the stomach and duodenum -- 6. Mucosal tumor of the stomach -- 7. Subepithelial tumor of the stomach -- 8. Lymphoma and metastasis of the stomach -- 9. Postoperative change and complications of the stomach and duodenum -- Part 3. Small Bowel -- 10. Benign structural & functional abnormality of the small bowel -- 11. Inflammatory disease of the small bowel -- 12. Vasculitis and ischemic bowel disease -- 13. Small bowel obstruction -- 14. Benign tumor of the small bowel -- 15. Malignant tumor of the small bowel -- Part 4. Colon -- 16. Benign structural & functional abnormality of the colon -- 17. Inflammatory & infectious disease of the colon -- 18. Benign tumor of the colon -- 19. Malignant tumor of the colon -- 20. Postoperative change and complications of the colon -- Part 5. Mesentery, Peritoneum, abdominal wall -- 21. Benign diseases of mesentery and omentum -- 22. Malignant diseases of mesentery and omentum -- 23. Abdominal wall abnormality & hernia.