471-47 | Portal Vein Aneurysm-471-47

471-47

Pdf Summary

This article discusses a case of an 85-year-old woman who was referred for ultrasound imaging due to an abnormal porta hepatis structure found on a CT urogram. The ultrasound images revealed a focal dilation of the main portal vein, indicating a portal vein aneurysm measuring 2.9 cm in diameter. The color Doppler image showed hepatopetal flow, but also displayed an area of boundary layer separation and non-axial flow. The portal vein proximal to the aneurysm was slightly enlarged but did not suggest cirrhosis.<br /><br />Portal vein aneurysms are rare, especially in splanchnic veins, with the portal vein being the most common location. These aneurysms can be congenital or acquired, often occurring at bifurcation or confluence sites. Acquired portal vein aneurysms can be associated with cirrhosis or portal venous hypertension. Although rupture is uncommon, the first reported case of a portal vein aneurysm was identified during autopsy of a patient who had experienced a rupture.<br /><br />In the absence of thrombosis, symptoms, or a large aneurysm size, watchful waiting and regular ultrasound surveillance are appropriate. The article also provides references for further reading on ultrasound evaluation of portal and hepatic veins, cases of hemocholecyst following a ruptured portal vein aneurysm, and the clinical presentation and management of visceral venous aneurysms.<br /><br />In summary, this article presents a case of a portal vein aneurysm detected through ultrasound imaging. It discusses the rarity of venous aneurysms, particularly in the portal vein, and provides information on the characteristics, causes, and management of portal vein aneurysms.

Keywords

85-year-old woman

ultrasound imaging

abnormal porta hepatis structure

CT urogram

focal dilation

main portal vein

portal vein aneurysm

color Doppler image

hepatopetal flow

boundary layer separation