The mesenteric infarction is a rare but life threating cause of acute
abdomen. A 55-year-old woman was referred to the hospital because of a
cute mesenteric infarction and in the history claudication. In the abs
ence of risk faktors (atrial fibrillation, atherosclerosis, nicotin ab
usus) a postoperative work up was started to identify the cause of the
arterial occlusions. A primary antiphospholipid-antibody syndrome was
found. The patient is now receiving low-dose aspirin and anticoagulat
ion therapy. The follow-up over now 14 months shows no further events.