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Updated: Aug 9, 2026

Multimodality Diagnosis of Mesenteric Ischemia
Published on: July 21, 2023
Proximal small bowel infarction associated with portal venous gas
Abstract:
Clostridium perfiringens may cause myonecrosis (i.e. gas gangrene), acute food poisoning or necrotic enteritis (e.g. enteritis necroticans or Pig Bel). We describe a case of enteritis necroticans in a 33 year old man with acute myeloid leukaemia. He presented with an acute abdomen, diarrhoea and pancytopaenia and extensive accumulation of gas in the intrahepatic and extrahepatic portal veins. Despite urgent resuscitation he died shortly after arrival in the Intensive Care Unit. Treatment of enteritis necroticans requires urgent surgery to remove dead bowel and in adults intravenous penicillin (1g 2-hourly) and metronidazole (500 mg 8-hourly) or clindamycin (600 mg 6-hourly). While antibiotics may also reduce toxin formation, beta toxoid has not been found to be of benefit in established disease.
Insights
Clostridium perfringens can cause severe conditions like gas gangrene and food poisoning. This case highlights a fatal instance of enteritis necroticans in a leukemia patient, emphasizing the need for prompt surgical intervention and antibiotics.
Area of Science:
- Medical Microbiology
- Gastroenterology
- Hematology
Background:
- Clostridium perfringens is an anaerobic bacterium known to cause various diseases, including myonecrosis (gas gangrene), acute food poisoning, and necrotic enteritis (enteritis necroticans).
- Enteritis necroticans is a severe intestinal condition characterized by necrosis of the small intestine, often associated with C. perfringens infection.
Purpose of the Study:
- To report a rare case of enteritis necroticans in an adult patient with acute myeloid leukemia.
- To discuss the clinical presentation, diagnostic findings, and management challenges of this severe gastrointestinal condition.
Main Methods:
- Case report detailing a 33-year-old male with acute myeloid leukemia presenting with symptoms of enteritis necroticans.
- Review of clinical presentation, laboratory findings (pancytopenia), and imaging results (portal venous gas).
Main Results:
- The patient presented with an acute abdomen, diarrhea, and pancytopenia.
- Extensive gas accumulation was observed in the intrahepatic and extrahepatic portal veins, indicative of severe intestinal compromise.
- Despite intensive resuscitation, the patient experienced a fatal outcome shortly after ICU admission.
Conclusions:
- Enteritis necroticans is a critical surgical emergency requiring prompt removal of necrotic bowel.
- Standard treatment involves intravenous antibiotics such as penicillin, metronidazole, or clindamycin.
- While antibiotics can reduce toxin production, beta-toxoid administration is not beneficial in established disease.
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