Etiology

Gastrointestinal

Gastroduodenal

• Gastric Ichemia/Infarction (see xxxx, [[]])
• Peptic Ulcer Disease (PUD) (see Peptic Ulcer Disease, [[Peptic Ulcer Disease]])

Hepatobiliary

• Acute Cholecystitis (see Acute Cholecystitis, [[Acute Cholecystitis]])
• Cholangitis (see Cholangitis, [[Cholangitis]])
• Congestive Hepatopathy (Passive Hepatic Congestion) (see Congestive Hepatopathy, [[Congestive Hepatopathy]])
• Hepatic Infarction (see Hepatic Infarction, [[Hepatic Infarction]])
• Pyogenic Liver Abscess (see Pyogenic Liver Abscess, [[Pyogenic Liver Abscess]])

Pancreatic

• Acute Pancreatitis (see Acute Pancreatitis, [[Acute Pancreatitis]])
• Chronic Pancreatitis (see Chronic Pancreatitis, [[Chronic Pancreatitis]])
• Pancreatic Cancer (see Pancreatic Cancer, [[Pancreatic Cancer]])

Colonic

• Clostridium Difficile Colitis (see Clostridium Difficile, [[Clostridium Difficile]])
• Diverticulitis (see Diverticulitis, [[Diverticulitis]])

Other

• Appendicitis (see Appendicitis, [[Appendicitis]])
• Peritonitis (see Peritonitis, [[Peritonitis]])
  • Gastric Rupture
  • Intestinal Perforation (see xxxx, [[]])
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Drug

• Abacavir (see Abacavir, [[Abacavir]])
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Toxin

• Glyphosate Ingestion (see Glyphosate, [[Glyphosate]])
• Nerium Oleander Intoxication (see Nerium Oleander, [[Nerium Oleander]]): colicky abdominal pain
• Serotonin Syndrome (see Serotonin Syndrome, [[Serotonin Syndrome]])
• Widow Spider Bite (see Widow Spider Bite, [[Widow Spider Bite]]): typically firm abdomen due to muscle spasms (mimicking peritonitis), but without abdominal tenderness
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Withdrawal

• Opiate Withdrawal (see Opiates, [[Opiates]])

Other

• Henoch-Schonlein Purpura (see Henoch-Schonlein Purpura, [[Henoch-Schonlein Purpura]])
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References

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