1. Overview of Echoendoscope Design and Mechanics for Interventional Endosonography 2. Normal Anatomy by Linear Array EUS 3. Overview of Needles for Interventional EUS 4. Linear EUS Guided Fine Needle Aspiration (Pentax FG32UA, FG34UA, FG36UX) 5. Linear EUS Guided Fine Needle Aspiration (Olympus XGF-UC3, XGF-UC4, GF-UC30P) 6. Mechanical Sector Scanning EUS Guided Fine Needle Aspiration (Olympus GF-UM30P) 7. Radial EUS Guided Fine Needle Aspiration 8. Linear EUS (Toshiba PEF-703A, Pentax FG-36UX) Guided Histologic Needle Biopsy 9. EUS Guided Fine Needle Aspiration of Pancreas 10. EUS Guided Fine Needle Aspiration of Lymph Nodes (Gastrointestinal Disease) 11. EUS Guided Fine Needle Aspiration of Lymph Nodes (Non-Small Cell Lung Cancer) 12. EUS Guided Fine Needle Aspiration of Submucosal GI Wall Compression and Enlarged Gastric Folds 13. EUS in the Detection of Ascites 14. EUS Guided Fine Needle Aspiration in Miscellaneous Gastrointestinal Lesions and Non-Gast rointestinal Diseases 15. Endosonography Guided Celiac Plexus Neurolysis 16. EUS Guided Injection of Botulinum Toxin for Achalasia 17. Endosonographic Pseudocyst Puncture and Drainage 18. Endosonography Guided Cholangio pancreatography 19. Complications of Interventional EUS 20. Cytological Diagnosis of EUS Guided Fine Needle Aspiration 21. Animal Model for Teaching Interventional EUS 22. Future Indications for Interventional EUS