Masterclass: EndoQuest - Endoscopy in the GI Unit (On-demand) | September 2025-Endoscopy Essentials: GI Anatomy and Pathology for Nurses and Technicians

Video Transcription

Video Summary

This comprehensive lecture covers essential anatomy and pathology relevant to endoscopy unit staff, focusing on the entire digestive tract from mouth to colon, including pancreaticobiliary systems. It begins with esophageal anatomy and common conditions seen during endoscopy, such as acid reflux, Barrett's esophagus, and esophagitis graded A-D based on mucosal injury. The significance of anatomical barriers like the diaphragm and lower esophageal sphincter in preventing reflux is explained. Varices related to portal hypertension and their management with banding at the distal esophagus are highlighted.<br /><br />Dysphagia causes like strictures, Schatzki's rings, and cancer staging with ultrasound are discussed. Detailed stomach anatomy and biopsy protocols (Sydney protocol) for detecting precancerous changes and Helicobacter pylori are emphasized. Various gastric conditions such as erosive gastritis, ulcers, and vascular lesions (e.g., watermelon stomach) are described.<br /><br />The small intestine section outlines duodenal anatomy, biopsy techniques for celiac disease, and findings including ulcers and tumors. Colonoscopy anatomy and polyp descriptions (pedunculated, sessile, flat) are covered, alongside inflammatory bowel disease distinctions between ulcerative colitis and Crohn’s disease and management of bleeding from diverticulosis, angioectasia, and post-polypectomy.<br /><br />Lastly, the pancreaticobiliary system anatomy is detailed to explain conditions like biliary colic, cholecystitis, bile duct stones, and post-cholecystectomy complications. Pancreatitis pathology, strictures, pseudocysts, and varices due to splenic vein blockage conclude the discussion. The lecture provides a thorough framework linking clinical cases to anatomical and pathological insights vital for endoscopy care teams.

Asset Subtitle

G.S. Raju, MD, FRCP, FACP, FASGE

Keywords

endoscopy anatomy

digestive tract

esophageal conditions

gastric pathology

small intestine biopsy

colonoscopy polyps

inflammatory bowel disease

pancreaticobiliary disorders