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Updated: Aug 30, 2026

Rodent Model of Intestinal Ischemia-Reperfusion Injury via Occlusion of the Superior Mesenteric Artery
Published on: October 20, 2023
[Fatal mesenteric ischemic accident caused by mesenteric inflammatory veno-occlusive disease]
Abstract:
A 72-year-old woman in good general health presented a massive intestinal and colonic ischemia with rapid post-operative death, due to mesenteric inflammatory veno-occlusive disease. Mesenteric inflammatory veno-occlusive disease, first described in 1994, is a vasculitis of unknown etiology limited to the mesenteric area, affecting exclusively veins and venules and sparing arteries. Histologically, there are acute lesions of lymphocytic and/or necrotizing, sometimes granulomatous phlebitis and chronic lesions of myointimal hyperplasia reducing the lumen of the veins. In this case, polymorphonuclear eosinophils were particularly numerous.
Insights
Mesenteric inflammatory veno-occlusive disease caused rapid death from intestinal ischemia in a patient. This rare vasculitis affects only mesenteric veins, leading to lumen reduction and potential organ damage.
Area of Science:
- Gastroenterology
- Vascular Medicine
- Pathology
Background:
- Mesenteric inflammatory veno-occlusive disease (MIVOD) is a rare vasculitis affecting mesenteric veins.
- First described in 1994, its etiology remains unknown.
- It exclusively impacts veins and venules, sparing arteries.
Observation:
- A 72-year-old woman experienced massive intestinal and colonic ischemia.
- This led to rapid post-operative death.
- Her case exhibited numerous polymorphonuclear eosinophils.
Findings:
- Histological examination revealed acute phlebitis (lymphocytic, necrotizing, granulomatous) and chronic myointimal hyperplasia.
- The venous lumen reduction was a key pathological feature.
- Eosinophilic infiltration was a prominent finding in this specific case.
Implications:
- MIVOD can lead to severe mesenteric ischemia and high mortality.
- Early recognition and understanding of MIVOD pathogenesis are crucial.
- Further research into MIVOD etiology and effective treatments is warranted.
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