Four cases of hepatic angiomyolipoma with early draining vein

Abstract

Case1 was a 66 year-old woman with liver tumor in left lobe. Dynamic CT scan revealed fat components and blood vessels within the tumor. In early phase, the left hepatic vein was shown as a draining vein. Case 2 was a 32 year-old woman with liver tumor in S7. Dynamic CT scan revealed fat-deficient hypervascular tumor. In early phase, accessory hepatic veins were shown as draining veins. Case 3 was a 59 year-old woman with liver tumor in S2. Dynamic CT scan revealed fat-deficient hypervascular tumor. In early phase, the left hepatic vein was shown as draining vein. Case 4 was a 72 year-old man with liver tumor in S1. Dynamic CT scan revealed fat-deficient hypervascular tumor. The CT during hepatic arteriography showed the accessory hepatic vein as draining vein. All of four tumors were diagnosed as hepatic angiomyolipoma (HAML) by biopsy. The presence of early draining vein suggested the diagnosis of HAML strongly.