Gastroenterology
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Abdominal compartment syndrome
Disease
Abdominal distension
Presentation
Abdominal wall pain
Presentation
Achalasia
Disease
Achalasia — Investigation
Pathway
Achalasia — Management and follow-up
Pathway
Acute appendicitis
Disease
Acute cholangitis
Disease
Acute cholecystitis
Disease
Acute cholecystitis — Diagnosis and management
Pathway
Acute colonic pseudo-obstruction
Disease
Acute diarrhea
Disease
Acute diverticulitis
Disease
Acute diverticulitis — Counseling and follow-up
Pathway
Acute diverticulitis — Diagnosis and management
Pathway
Acute liver failure
Disease
Acute mesenteric ischemia
Disease
Acute watery diarrhea
Presentation
Allied disorders of Hirschsprung's disease
Disease
Ampullary cancer
Disease
Amylase, increased
Presentation
Anal cancer
Disease
Anal fissure
Disease
Anogenital warts
Disease
Anorectal abscess
Disease
Anorectal fistula
Disease
Anorectal varices
Disease
Anti-neutrophil cytoplasmic antibodies
Presentation
Appendiceal neoplasm
Disease
Ascites
Presentation
Ascites
Disease
Atrophic gastritis
Disease
Autoimmune hepatitis
Disease
Autoimmune pancreatitis
Disease
Autoimmune pancreatitis — Management
Pathway
Barrett's esophagus
Disease
Bicarbonate, decreased
Presentation
Bicarbonate, increased
Presentation
Bile acid diarrhea
Disease
Biliary stricture
Disease
Bowel trauma
Disease
Budd-Chiari syndrome
Disease
Budd-Chiari syndrome — Diagnosis and management
Pathway
Cancer-associated cachexia
Disease
Causes of abdominal wall pain — Investigation
Pathway
Causes of acute watery diarrhea — Investigation
Pathway
Causes of constipation — Investigation
Pathway
Causes of increased serum amylase — Investigation
Pathway
Causes of nausea — Investigation
Pathway
Caustic ingestion
Disease
Celiac artery aneurysm
Disease
Celiac disease
Disease
Chemotherapy- and radiotherapy-induced mucositis
Disease
Cholangiocarcinoma
Disease
Choledocholithiasis
Disease
Choledocholithiasis — Management
Pathway
Chronic cough
Disease
Chronic diarrhea
Disease
Chronic graft-versus-host disease
Disease
Chronic intestinal pseudo-obstruction
Disease
Chronic mesenteric ischemia
Disease
Chronic pancreatitis
Disease
Chronic watery diarrhea
Presentation
Clostridioides difficile infection
Disease
Colon cancer
Disease
Colonic ischemia
Disease
Colonic volvulus
Disease
Colonoscopy
Disease
Colorectal polyps
Disease
Colorectal surgery
Disease
Constipation
Presentation
Constipation
Disease
Constipation — Investigation
Pathway
Copper, decreased
Presentation
Crohn's disease
Disease
Cyclic vomiting syndrome
Disease
Deprescribing proton pump inhibitors
Disease
Dermatitis herpetiformis
Disease
D-lactic acid, increased
Presentation
Drug-induced liver injury
Disease
Dumping syndrome
Disease
Duodenal trauma
Disease
Dysphagia
Presentation
Endoscopic retrograde cholangiopancreatography
Disease
Enterocutaneous fistula
Disease
Eosinophilic esophagitis
Disease
Esophageal cancer
Disease
Esophageal dysphagia
Disease
Esophageal dysphagia
Presentation
Esophageal perforation
Disease
Esophageal rings and webs
Disease
Esophageal stricture
Disease
Extrahepatic cholestasis
Presentation
Extrahepatic portal vein obstruction
Disease
Familial adenomatous polyposis
Disease
Fecal incontinence
Presentation
Fecal incontinence
Disease
Fecal occult blood test, positive
Presentation
Focal liver lesions
Disease
Foreign body ingestion
Disease
Functional dyspepsia
Disease
Gallbladder cancer
Disease
Gallbladder polyps
Disease
Gallstone disease
Disease
Gastric artery aneurysm
Disease
Gastric cancer
Disease
Gastric outlet obstruction
Disease
Gastroesophageal reflux disease
Disease
Gastroesophageal varices
Disease
Gastrointestinal stromal tumors
Disease
Gastroparesis
Disease
Gingival hyperpigmentation
Presentation
Halitosis
Presentation
Helicobacter pylori infection
Disease
Hematemesis
Presentation
Hemorrhoids
Disease
Hepatic encephalopathy
Disease
Hepatitis A virus infection
Disease
Hepatitis E virus infection
Disease
Hepatocellular carcinoma
Disease
Hepatorenal syndrome
Disease
Hereditary hemorrhagic telangiectasia
Disease
Hiatal hernia
Disease
Hirschsprung disease
Disease
Hypergastrinemia
Presentation
Hypersalivation
Presentation
Hypochlorhydria
Presentation
Hypokalemia
Presentation
Hypoproteinemia
Presentation
Idiopathic noncirrhotic portal hypertension
Disease
IgG4-related sclerosing cholangitis
Disease
Incisional hernia
Disease
Inflammatory diarrhea
Presentation
Inflammatory pancreatic fluid collections
Disease
Inguinal hernia
Disease
Intrahepatic cholestasis
Presentation
Iron deficiency anemia
Disease
Iron deficiency anemia — Investigation
Pathway
Iron deficiency anemia — Management
Pathway
Irritable bowel syndrome
Disease
Jaundice
Presentation
Klatskin tumor
Disease
Lipase, increased
Presentation
Liver cirrhosis
Disease
Lynch syndrome
Disease
Malignant bowel obstruction
Disease
Median arcuate ligament syndrome
Disease
Megacolon
Presentation
Mesenteric artery aneurysm
Disease
Microscopic colitis
Disease
Nausea
Presentation
Neoplastic pancreatic cysts
Disease
Non-ampullary duodenal adenoma
Disease
Non-esophageal eosinophilic gastrointestinal disorders
Disease
Non-variceal upper gastrointestinal bleeding
Disease
Non-variceal upper gastrointestinal bleeding — Management
Pathway
Oropharyngeal dysphagia
Presentation
Ostomy surgery
Disease
Pale stools
Presentation
Palpable abdominal mass
Presentation
Pancreatic cancer
Disease
Pancreatic trauma
Disease
Parenteral nutrition
Disease
Pediatric pancreatitis
Disease
Peptic ulcer disease
Disease
Peutz-Jeghers syndrome
Disease
Portal hypertension
Disease
Portal vein thrombosis
Disease
Precancerous gastric lesions
Disease
Procedural sedation
Disease
Radiation proctitis
Disease
Ratio ascites to serum creatinine, increased
Presentation
Rectal cancer
Disease
Rectal foreign body
Disease
Rectal prolapse
Disease
Rectovaginal fistula
Disease
Rumination syndrome
Disease
Small bowel adenocarcinoma
Disease
Small bowel neuroendocrine tumors
Disease
Small bowel obstruction
Disease
Small bowel obstruction — Diagnosis and management
Pathway
Small intestinal bacterial overgrowth
Disease
Sphincter of Oddi dysfunction
Disease
Spontaneous bacterial peritonitis
Disease
Steatorrhea
Presentation
Tenesmus
Presentation
Tracheoesophageal malformations
Disease
Traumatic esophageal injury
Disease
Traveler's diarrhea
Disease
Ulcerative colitis
Disease
Upper gastrointestinal endoscopy
Disease
Variceal hemorrhage
Disease
Vibrio vulnificus infection
Disease
Vitamin B12 deficiency
Disease
Vitamin B12 deficiency — Diagnosis and management
Pathway
Zenker's diverticulum
Disease