[Acute abdomen caused by thrombosis of the portal and superior mesenteric veins in a splenectomized hematologic patient].

Thrombosis of the portal veins and superior mesenteric artery is a rare condition which may occur due to a wide variety of precipitating factors and is a very uncommon complication in post splenectomized hematologic patients. The case of a woman with idiopathic thrombocytopenic purpura with portal and mesenteric thrombosis following splenectomy is presented. Diagnosis was established by echography and abdominal computerized tomography and confirmed following percutaneous transhepatic angiography. Local fibrinolysis of the thrombosis was performed through a percutaneous transhepatic catheter with good resolution of the process. The authors conclude that echography and computerized tomography provide useful information in this type of complications while percutaneous transhepatic fibrinolysis constitutes the treatment of choice in these patients.