Abstract
A 54-year-old woman with fever and diarrhea was treated as colitis by the previous doctor. She was referred to our hospital without improvement. The blood test showed markedly increased eosinophil count. CT examination showed the thrombosis of the superior mesenteric vein, abdominal aorta, and right pulmonary artery. We diagnosed as eosinophilia with multiple thrombosis. We started anticoagulant and steroid therapy. Eosinophil counts decreased, and CT at 3 months after the onset showed reduction of the thrombosis. We have been decreasing the amount of the steroid, and did not detect the recurrence of the thrombosis.
