- Gastroenterology
- Abdominal pain, generalized
- Abdominal pain, left lower quadrant
- Abdominal pain, left upper quadrant
- Abdominal pain, right lower quadrant
- Abdominal pain, right upper quadrant
- Abdominal pain, upper
- Abdominal pain, upper or epigastric
- Abscess, liver
- Achalasia
- Alcoholic hepatitis
- Alkaline phosphatase increased
- Amebiasis
- Amebic liver disease
- Amylase increased
- Anal cancer
- Anal fissure
- Anal fissures
- Aneurysms, visceral artery
- Anogenital pruritus
- Anorectal infections
- Anorectal pain
- Anorexia (poor appetite)
- Appendicitis
- Arthritis & inflammatory bowel diseases
- Ascites
- Ascites (common causes)
- Ascites, chylous
- Ascites, malignant
- Ascites, malignant,
- Aspiration of gastric contents, acute
- Aspiration of gastric contents, chronic
- Aspiration of gastric contents, chronic, etiology
- AST/ALT increased
- Atrophic gastritis
- Autoimmune hepatitis
- Bacterial overgrowth, small intestine
- Belching
- Biliary cirrhosis, primary
- Biliary obstruction
- Biliary stricture
- Biliary tract carcinoma
- Budd-Chiari syndrome
- Budd-Chiari syndrome (hepatic vein obstruction)
- Cancer, anal
- Cancer, biliary tract
- Cancer, colorectal
- Cancer, esophageal
- Cancer, gastric
- Cancer, liver
- Cancer, pancreatic
- Cancer, small intestine
- Carcinoid tumors, gastric
- Cavernous hemangioma, liver
- Celiac disease
- Celiac sprue
- Cholangitis & choledocholithiasis
- Cholangitis, sclerosing
- Cholecystectomy, pre- & post- syndrome
- Cholecystitis, acute
- Choledocholiathiasis
- Cholelithiasis (gallstones)
- Cholestasis
- Cirrhosis
- Cirrhosis, primary biliary
- Clostridium difficile colitis
- Colitis, antibiotic-associated
- Colitis, Clostridium difficile
- Colitis, ischemic
- Colitis, microscopic
- Colitis, ulcerative
- Colon cancer
- Colonic polyps
- Colonic pseudo-obstruction, acute (Ogilvie's syndrome)
- Colorectal cancer
- Colorectal cancer, hereditary nonpolyposis
- Constipation
- Crohn's disease
- Diarrhea in diabetes
- Diarrhea in HIV/AIDS
- Diarrhea, acute
- Diarrhea, acute,
- Diarrhea, chronic
- Diarrhea, chronic,
- Diarrhea, traveler's
- Diverticulitis
- Diverticulosis
- Duodenal ulcer
- Dyspepsia
- Dysphagia
- E coli gastroenteritis
- Effusions, malignant, pleural, pericardial, & peritoneal
- Encephalopathy, hepatic
- Entamoeba histolytica
- Enteropathy, protein-Losing
- Epigastric pain
- Esophageal cancer
- Esophageal diverticula
- Esophageal injury, caustic
- Esophageal motility disorders
- Esophageal varices
- Esophageal webs & rings
- Esophagitis
- Esophagitis, infectious
- Esophagitis, pill-induced
- Familial adenomatous polyposis
- Familial Mediterranean fever
- Fatty liver disease, alcoholic & nonalcoholic
- Fatty liver of pregnancy, acute
- Fecal incontinence
- Fecal occult blood test, positive
- Fistula, perianal
- Flatus (flatulence, gas)
- Focal nodular hyperplasia, liver
- Gallstones
- Gallstones, common bile duct
- Gastric adenocarcinoma
- Gastric aspiration, acute
- Gastric aspiration, chronic
- Gastric cancer
- Gastric carcinoids
- Gastric tumor
- Gastric ulcer
- Gastrinoma
- Gastritis
- Gastritis, atrophic
- Gastritis, erosive & hemorrhagic
- Gastritis, Helicobacter pylori
- Gastroenteritis, Escherichia coli
- Gastroenteritis, salmonella
- Gastroenteritis, viral
- Gastroesophageal reflux disease (GERD)
- Gastrointestinal bleeding, acute lower
- Gastrointestinal bleeding, acute upper
- Gastrointestinal bleeding, lower
- Gastrointestinal bleeding, occult
- Gastrointestinal bleeding, occult,
- Gastrointestinal bleeding, upper
- Gastroparesis
- GERD
- GI bleeding, acute lower
- GI bleeding, acute upper
- GI bleeding, occult
- Giardiasis
- Gluten enteropathy
- Halitosis (bad breath)
- Heartburn
- Helicobacter pylori gastritis
- Hematemesis
- Hematochezia
- Hemochromatosis
- Hemorrhoids
- Hepatic encephalopathy
- Hepatic failure, acute
- Hepatic failure, acute,
- Hepatic vein obstruction (Budd-Chiari syndrome)
- Hepatitis A
- Hepatitis B, acute
- Hepatitis B, chronic
- Hepatitis C, acute
- Hepatitis C, chronic
- Hepatitis D (delta)
- Hepatitis, acute
- Hepatitis, alcoholic
- Hepatitis, autoimmune
- Hepatitis, chronic
- Hepatitis, drug- or toxin-induced
- Hepatocellular carcinoma
- Hepatomegaly
- Hepatopathy, ischemic
- Hepatopulmonary syndrome
- Hepatorenal syndrome
- Hereditary nonpolyposis colorectal cancer
- Hiccups
- Hiccups (singultus)
- Ileus, acute paralytic
- Incontinence, fecal
- Inflammatory bowel disease & arthritis
- Inflammatory bowel disease, Crohn's disease
- Inflammatory bowel disease, ulcerative colitis
- Intestinal ischemia
- Intestinal ischemia, acute
- Intestinal ischemia, chronic
- Involuntary weight loss
- Irritable bowel syndrome
- Ischemic colitis
- Jaundice
- Jaundice (icterus)
- Jaundice in pregnancy
- Lactase deficiency
- Liver abscess, amebic
- Liver abscess, pyogenic
- Liver cancer
- Liver cell adenoma
- Liver disease, general categories
- Liver failure
- Liver mass
- Liver neoplasms, benign
- Liver, fatty
- Lower GI bleeding, acute
- Lymphoma, gastric
- Malabsorption
- Mallory-Weiss syndrome
- Megacolon
- Melena
- Mesenteric ischemia
- Mesothelioma, peritoneal
- Metastases to liver
- Morning sickness
- NASH
- Nausea & vomiting
- Nausea & vomiting of pregnancy
- Nausea and vomiting
- Nonalcoholic fatty liver disease
- Obstruction of large intestine
- Obstruction of small intestine
- Occult GI bleeding
- Odynophagia
- Ogilvie's syndrome
- Pain, abdominal
- Pancreatic cancer
- Pancreatitis, acute
- Pancreatitis, acute,
- Pancreatitis, chronic
- Pancreatitis, chronic,
- Peptic ulcer disease
- Peptic ulcer disease, complications
- Perianal abscess & fistula
- Perianal fistula
- Pericardial effusion, malignant
- Peritoneal carcinomatosis
- Peritoneal effusion, malignant
- Peritonitis, spontaneous bacterial
- Peritonitis, tuberculous
- Pill-induced esophagitis
- Pleural effusion, malignant
- Polyposis, familial adenomatous
- Polyps of colon and small intestine
- Polyps, colonic & small intestinal
- Portal hypertension
- Postcholecystectomy pain
- Primary biliary cirrhosis
- Primary sclerosing cholangitis
- Pruritus, anogenital
- Pseudomembranous colitis
- Pyogenic liver abscess
- Reflux, gastroesophageal
- Salmonella gastroenteritis
- Sclerosing cholangitis, primary
- Shock liver
- Short bowel syndrome
- Singultus
- Small intestinal neoplasms
- Small intestinal tumor
- Splenomegaly
- Spontaneous bacterial peritonitis
- Sprue, celiac
- Traveler's diarrhea
- Traveller's diarrhea
- Tuberculosis, intestinal
- Tuberculous peritonitis
- Tumor, colorectal
- Tumor, esophageal
- Tumor, liver
- Tumor, small intestine
- Ulcer disease, peptic
- Ulcerative colitis
- Upper GI bleeding, acute
- Varices, esophageal
- Visceral artery aneurysms
- Visceral artery insufficiency
- Vomiting
- Vomiting of pregnancy
- Vulvar pruritus
- Weight loss, involuntary
- Weight loss, involuntary,
- Whipple's disease
- Wilson's disease
- Zollinger-Ellison syndrome
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