Acute portal and mesenteric thrombosis: unusual presentation of cytomegalovirus infection

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Abstract
Cytomegalovirus infection is a benign disease in immunocompetent patients. In-vitro and in-vivo studies show that cytomegalovirus may cause arterial and venous thrombosis through different mechanisms. We describe two cases of acute cytomegalovirus infection complicated by portal and mesenteric vein thrombosis leading to intestinal ischemia. Both patients carried the heterozygous prothrombin G20210A mutation. The presence of this unusual complication should be searched for in patients with acute cytomegalovirus infection and abdominal symptoms in order to start early anticoagulation. The necessity for full thrombophilic screening is also pointed out.