Table of Contents: 1. THE ESOPHAGUS 1.1 ESOPHAGEAL TUMORS. Adenocarcinoma. Squamous Cell Carcinoma. Mesenchymal Tumors. Other Esophageal Neoplasms

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1 Table of Contents: 1. THE ESOPHAGUS 1.1 ESOPHAGEAL TUMORS Adenocarcinoma Squamous Cell Carcinoma Mesenchymal Tumors Other Esophageal Neoplasms Non-neoplastic Lesions 1.2 GASTROESOPHAGEAL REFLUX DISEASE (GERD) Reflux Esophagitis Peptic Strictures Barrett s Esophagus 1.3 ESOPHAGITIS (NON-GERD) Infectious Esophagitis Drug-Induced, Caustic, and Radiation Injury Other Esophagitides 1.4 ESOPHAGEAL DYSMOTILITY DISORDERS Achalasia Diffuse Esophageal Spasm Scleroderma (Progressive Systemic Sclerosis) 1.5 OTHER ESOPHAGEAL CONDITIONS Vascular Lesions Pharyngoesophageal Diverticula Duplication Cysts Mechanical Injury Foreign Body Impaction Esophageal Fistulas Intramural Pseudodiverticulosis Rings, Webs, and Stenosis Vascular Rings and Slings Hypopharyngeal Disease 2. THE STOMACH 2.1 GASTRIC TUMORS

2 Mucosal Polyps Adenocarcinoma Lymphoma Mesenchymal Tumors Other Submucosal Tumors 2.2 GASTRITIS AND GASTROPATHY Peptic Ulcer Disease Reactive Gastropathies Zollinger-Ellison Syndrome Infectious Gastritis Granulomatous Diseases Ménétrier s Disease Other Inflammatory Conditions 2.3 OTHER GASTRIC CONDITIONS Vascular Lesions Gastric Hernias Gastric Fistulas Heterotopic Pancreatic Rest Duplication Cysts Gastric Bezoars Gastric Volvulus Gastric Diverticula Complications of Percutaneous Endoscopic Gastrostomy 3. THE DUODENUM 3.1. DUODENAL TUMORS Mucosal Neoplasms Submucosal Tumors Non-neoplastic Lesions 3.2 INFLAMMATORY CONDITIONS Peptic Ulcer Disease Duodenitis 3.3 OTHER DUODENAL CONDITIONS

3 Vascular Lesions Aortoduodenal Fistula Duodenal Diverticula Duodenal Duplication Cyst Infiltrative Diseases 4. THE MESENTERIC SMALL BOWEL 4.1 SMALL BOWEL TUMORS Adenocarcinoma Carcinoid Tumor Lymphoma Mesenchymal Tumors 4.2 ENTERITIS Crohn s Disease Infectious Enteritis Other Inflammatory Conditions 4.3 OTHER SMALL BOWEL CONDITIONS Small Bowel Obstruction Mesenteric Ischemia Small Bowel Herniation Celiac Disease Small Bowel Diverticula Malrotation Small Bowel Wall Thickening Small Bowel Perforation Vascular Ectasia 5. THE COLON AND RECTUM 5.1 COLORECTAL POLYPS AND MASSES Benign Mucosal Neoplasms Non-neoplastic Mucosal Lesions Submucosal Lesions Colonic Adenocarcinoma

4 Rectal Adenocarcinoma Other Colorectal Tumors CTC Diagnostic Tools CTC Pitfalls 5.2 COLITIS Ulcerative Colitis Crohn s Disease Infection Ischemia Other Colitides 5.3 COLONIC DIVERTICULAR DISEASE Diverticulosis Acute Diverticulitis Diverticular Fistulas and Strictures Diverticular Hemorrhage Giant Sigmoid Diverticulum 5.4 THE APPENDIX Appendicitis Appendiceal Tumors 5.5 OTHER COLORECTAL CONDITIONS Anorectal Disease Intussusception Vascular Lesions Colonic Volvulus Endometriosis Pneumatosis Coli Colonic Hernias Complications of Colonoscopy Epiploic Appendagitis Melanosis Coli 6. THE BILIARY SYSTEM 6.1 BILIARY TUMORS

5 Cholangiocarcinoma Gallbladder Carcinoma Periampullary Tumors Other Biliary Tumors 6.2 BILIARY CALCULI Cholelithiasis Choledocholithiasis Mirizzi s Syndrome Biliary-Enteric Fistulas 6.3 INFLAMMATORY DISEASES Cholecystitis Primary Sclerosing Cholangitis (PSC Ascending Cholangitis) Recurrent Pyogenic Cholangitis AIDS Cholangiopathy 6.4 OTHER BILIARY CONDITIONS Choledochal Cysts Caroli s Disease Adenomyomatosis Porcelain Gallbladder Biliary Leak Other Causes of Stricture and Obstruction Hemobilia 7. THE PANCREAS 7.1 PANCREATIC NEOPLASMS Ductal Adenocarcinoma Mucinous Cystic Neoplasms Intraductal Papillary Mucinous Neoplasm Serous Cystadenoma Islet Cell Tumors Solid-Pseudopapillary Tumor

6 Other Pancreatic Neoplasms 7.2 PANCREATITIS Acute Pancreatitis Chronic Pancreatitis Pancreatic Pseudocysts Autoimmune Pancreatitis 7.3 OTHER PANCREATIC CONDITIONS Pancreas Divisum Annular Pancreas Simple Pancreatic Cysts Pancreatic Trauma 8. THE LIVER 8.1 NEOPLASTIC LESIONS Hepatocellular Carcinoma Cavernous Hemangioma Hepatocellular Adenoma Intrahepatic (Peripheral) Cholangiocarcinoma Other Hepatic Tumors 8.2 NON-NEOPLASTIC LESIONS Focal Nodular Hyperplasia Benign Hepatic Cysts Hepatic Abscess Vascular Findings 8.3 OTHER HEPATIC CONDITIONS Cirrhosis and Portal Hypertension Budd-Chiari Syndrome Fatty Liver Disease (Hepatic Steatosis) Hemochromatosis The Hyperdense Liver on CT Post-transplant Complications