A 27-year-post-partum female with known cryptogenic cirrhosis for 2 years presented with abdominal distension and swollen feet for 4 weeks. Abdominal ultrasound revealed features of portal hypertension with grossly dilated portal vein including its right and left branches. Subsequent abdominal magnetic resonance imaging test confirmed the diagnosis of a portal vein aneurysm (PVA). Flow sensitive axial image (Panel A) arrow points to aneurysmal dilatation of ascending branch of the left portal vein (> 3 cm) and coronal contrast enhanced magnetic resonance angiographic imaging (Panel B) arrow points to markedly dilated portal vein (21 mm).
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