A previously healthy 44-year-old male presented with fever, abdominal pain, liver dysfunction and lymphadenopathy. He was diagnosed as having acute cytomegalovirus (CMV) infection with elevated CMV-IgG and IgM, and observed with supportive therapy. He was admitted to our hospital with prolonged fever lasting for a month. Enhanced CT revealed multiple thromboses in the right pulmonary artery and superior mesenteric vein. Follow-up CT after one week revealed new-onset thromboses in the left pulmonary artery and common iliac vein. Screening tests for thrombophilia were negative. His symptoms were improved with anticoagulant therapy with intravenous heparin, followed by oral warfarin. He was discharged on admission day 28 with good condition. Follow-up CT after 6 months revealed complete resolution of the thromboses. Anticoagulant therapy was stopped after 9 months, and he has been well without recurrence. Though vascular thrombosis is a rare complication, we must be alert to the signs and symptoms of thrombosis in patients with acute CMV infection.
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