Portal vein thrombosis is a catastrophe not uncommonly complicating hepatitis C virus-related liver cirrhosis. To estimate its prevalence and clinical characteristics, we investigated 1000 cirrhotic patients by abdominal ultrasound or Doppler study at least. Portal vein thrombosis was found in 21.6%, of whom 157 (72.7%) had malignancy. Complete portal vein thrombosis was found in 70.4%. Half of all these patients had at least one episode of portal hypertensive bleeding, a third had abdominal pain and a quarter presented with jaundice. Portal bilopathy was diagnosed in two cases (0.9%). There was significant association between severity of liver disease, ascites, male gender and site of segmental focal lesion and portal vein thrombosis.
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