2021 Volume 41 Issue 4 Pages 297-300
A 74-year-old woman was admitted to the emergency department of our hospital complaining of acute abdominal and back pain. Sixty days earlier, she had undergone ultrasonography-guided radiofrequency ablation（RFA）for a single hepatocellular carcinoma（HCC）nodule. Based on the findings of plain computed tomography（CT）in the current admission, a tentative diagnosis of hemobilia was made, however, no extravasation was observed on dynamic contrast-enhanced computed tomography（CECT）. Six days after hospitalization, the back pain recurred and concurrently, the patient had melena. A repeat plain CT showed high attenuation in the biliary tract and gall bladder and a dynamic CECT and its maximum intensity projection（MIP）images revealed a pseudoaneurysm in the right hepatic artery. Subsequently, hepatic angiography revealed a pseudoaneurysm of the right hepatic artery and we performed emergency transarterial embolization（TAE）using gelatin particles. Since then, the bleeding has not recurred. We describe a case of hemobilia caused by a pseudoaneurysm of the hepatic artery as a delayed complication after RFA for HCC.
