A case of resected huge hepatic angiomyolipoma showing FDG uptake in PET/CT

Abstract

A 33-year-old Chinese woman was admitted to our hospital due to recent body weight loss (15 kg/year). Contrast enhanced computed tomography (CT) and ultrasonography (US) examinations revealed a huge hepatic tumor (17 cm in diameter) in the left hepatic lobe. There were no viral hepatic diseases or alcohol abuse, and no elevation of tumor markers (AFP, PIVKA-II, CEA, CA19-9). Contrast enhanced US with Sonazoid® showed the feeding artery, as well as heterogeneous enhancement from the periphery in the early vascular phase and a perfusion defect in the post-vascular phase. FDG uptake in the tumor (SUV max 6.1) was shown by FDG PET/CT. Following resection, the tumor was diagnosed histologically as a hepatic angiomyolipoma. In spite of recent advancements, it remains difficult to diagnosis a hepatic angiomyolipoma based on imaging findings. © 2014 The Japan Society of Hepatology.