Noncancerous Right Portal Vein Occlusion: 2 cases

Kim, Bum Ryul; Kang, Man Soo; Kwun, Woo Hyung; Yun, Sung Soo; Kim, Hong Jin

Abstract

Portal vein thrombosis is a rare condition occuring in association with a wide varitey of precipitation factors. Among these, advanced hepatoma constitute the major etiology of portal vein thrombosis. Noncancerous intrahepatic portal vein occlusion was reported in some cases of repeated cholangitis. Generally, Intrahepatic stones occures in Lt. lobe of liver and repeated inflammatory precesses occlude peripheral branch of Lt. portal vein. So, noncancerous Rt. portal vein occlusion is extremly rare condition. Two Patients visited our hospital with Rt. upper quadrant abdominal pain and fever. Preoperative abdominal ultrasonography, computerlized tomography, endoscopic retrograde cholagiopancreaticography revealed multiple Rt. intrahepatic stones and Rt. portal vein 1st branch occlusion. Rt. lobectomy of liver were performed. Pathologic reports were portal vein occlusion due to inflammatory thrombi, not tumor thrombi. Thus authors experienced 2 cases of Rt. portal vein 1st branch occlusion due to noncancerous benign condition, such as multiple intrahepatic stones, we report these cases with brief review of literature.