Median arcuate ligament syndrome
Acute lower abdominal pain
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Tight ostial stenosis is seen at the coeliac trunk ostium with the fibrous band making up the median arcuate ligament seen clearly compressing it from above. The artery and its branches showed, apart from some atherosclerotic changes, good distal opacification and caliber.
Incidentally discovered coeliac trunk compression by the median arcuate ligament causing tight ostial stenosis. The patient however turned out to have acute appendicitis which was the cause for her acute onset abdominal pain and presentation. The coeliac compression seems rather asymptomatic. The median arcuate ligament is a fibrous ligament crossing the aorta to connect the 2 diaphragmatic crurea.