Аннотация:A diagnosis of portal system thrombosis can be easily obtained with conventional digital imaging [1]; however, the etiology of the thrombosis can be difficult to assess in the absence of the characteristic hallmarks of a malignant or benign thrombus. When a definitive diagnosis is required, transabdominal ultrasound-guided fine needle aspiration (FNA) of the portal vein thrombus can be performed [2], but this technique is not widely used because of the risk of post-biopsy bleeding complications.
