SECTION 3
Digestive Disorders
17 Biology of the Digestive System
Throat and Esophagus 
Stomach Small Intestine Pancreas Liver Gallbladder and Biliary Tract Large Intestine Rectum and Anus Effects of Aging
18 Symptoms and Diagnosis of Digestive Disorders
Abdominal Pain Bleeding from the Digestive Tract Chest or Back Pain Constipation Diarrhea Difficulty Swallowing Dyspepsia Fecal Incontinence Gas-Related Complaints Globus Sensation Loss of Appetite Nausea and Vomiting Regurgitation Medical History and Physical Examination Psychologic Evaluation Diagnostic Procedures
Abnormal Propulsion of Food Infection Injury Obstruction
Gastritis Peptic Ulcer Gastroesophageal Reflux
Hemorrhagic Colitis Staphylococcal Food Poisoning Clostridium perfringens Food Poisoning Traveler’s Diarrhea Chemical Food Poisoning
22 Hiatus Hernia, Bezoars, and Foreign Bodies
Lactose Intolerance Celiac Sprue Tropical Sprue Whipple’s Disease Intestinal Lymphangiectasia Short Bowel Syndrome Bacterial Overgrowth Syndrome
25 Inflammatory Bowel Diseases
Crohn’s Disease Ulcerative Colitis Collagenous Colitis and Lymphocytic Colitis Diversion Colitis
26 Clostridium difficile–Induced Colitis
Anal Fissure Anal Itching Anorectal Abscess Anorectal Fistula Foreign Objects Hemorrhoids Levator Syndrome Pilonidal Disease Proctitis Rectal Prolapse
30 Tumors of the Digestive System
Esophageal Tumors That Are Noncancerous Esophageal Cancer Stomach Tumors That Are Noncancerous Stomach Cancer Small-Intestine Tumors That Are Noncancerous Small-Intestine Cancer Colorectal Polyps Colorectal Cancer Anal Cancer Pancreatic Cancer Pancreatic Endocrine Tumors
31 Gastrointestinal Emergencies
Abdominal Abscesses Abdominal Wall Hernias Acute Mesenteric Ischemia Appendicitis Ileus Intestinal Obstruction Ischemic Colitis Perforation